John Adams is not a difficult book — McCullough writes with his characteristic accessibility and narrative drive — but it makes a complex argument. Adams was right about the most important things at the most important times, and the country largely forgot him for it. He was right that the Revolution was more dangerous than exciting. Right that democracy required law and institutions to survive liberty’s natural tendency toward license. Right that the Constitution’s framers were not demigods but fallible men who had done something remarkable and fragile. Right that France’s revolutionary violence was not something the American republic should emulate or celebrate. Right that the war his successor Madison fought against Britain in 1812 was as unnecessary as he’d warned. He was right, and the century following his death in 1826 largely ignored him, preferring the more romantic Jefferson and the more imposing Washington.
McCullough’s biography restored Adams to his proper place in the founding story. It’s a book about integrity — about what it costs to tell hard truths in political life, about the rarity of politicians who take unpopular positions because they believe they’re correct, and about how history eventually, sometimes, catches up with the people it initially overlooked.
The Adams Character: Braintree to Boston
John Adams was born in 1735 in Braintree, Massachusetts, to a family of modest but solid New England stock. His father was a farmer and shoemaker who served on local committees and instilled in his son both a reverence for learning and a puritanical sense that work and duty were the defining virtues of a good life. Adams attended Harvard, graduating in 1755, and initially considered entering the ministry before deciding on law. He was a voracious reader, a compulsive diarist, and a man whose inner life was almost perpetually at war with itself — ambitious and self-doubting, principled and vain, capable of great warmth and great prickliness, often all in the same day.
His diary entries from early adulthood are remarkable documents — candid about his own faults in ways that would be embarrassing if they weren’t so obviously honest. He records his vanity, his tendency to dominate conversations, his hunger for recognition, his irritability at slights real and imagined. He records his resolutions to do better and his frequent failures to keep them. What’s striking is not the faults themselves — ordinary human faults — but his unflinching willingness to name them in writing, to himself, without the self-exculpation most people’s private records are unconsciously full of.
He married Abigail Smith in 1764, and their partnership is one of the great marriages in American history — not romantic in the storybook sense, but deep, intellectually equal, mutually sustaining over fifty-four years of often difficult separation. Abigail Adams was formidably intelligent, politically sophisticated, and personally forceful. She managed the family farm in Braintree through years of war and crisis while John was in Philadelphia, Paris, London, and Amsterdam, and her letters to him during these periods are as politically acute and as eloquently written as anything he produced. McCullough gives their correspondence the central place it deserves, reading it as a sustained dialogue between two first-rate minds who happened also to be deeply in love.
The Defense of Captain Preston and the Rule of Law
The episode that most illuminates Adams’s character — and that McCullough narrates with particular care — is his decision in 1770 to defend Captain Thomas Preston and the British soldiers involved in the Boston Massacre. Five colonists had been killed. The city was inflamed. Anti-British sentiment was at its highest point yet, and the soldiers were almost universally assumed guilty of deliberate murder. Sam Adams and the radical Patriots wanted them convicted and executed as propaganda for the independence cause.
John Adams agreed to defend them. He believed every person accused of a crime deserved a fair defense under law, regardless of political convenience. He believed the rule of law was more important than any particular political outcome, and that a society that abandoned fair trials for political enemies would eventually abandon them for everyone. He believed that if the soldiers were innocent, convicting them would be a worse injustice than acquitting them would be politically convenient.
He won. The evidence showed the soldiers had been provoked and had fired in a chaotic situation where the command to fire was ambiguous. Preston was acquitted. Six of the eight soldiers were acquitted; two were convicted of manslaughter rather than murder and were branded on the thumb. The case cost Adams clients, political standing, and social relationships. He believed it was among the best things he ever did. “It was one of the most gallant, generous, manly and disinterested Actions of my whole Life,” he wrote in his diary, “and one of the best Pieces of Service I ever rendered my Country.”
That judgment is not self-serving vanity. It’s accurate moral assessment. Adams understood that the rule of law — the principle that even the most hated defendant deserves a fair trial under known rules applied consistently — was the distinguishing feature between republican government and the tyranny it was supposed to replace. He put that principle ahead of political advantage at significant personal cost. In the 1770s, when the independence movement was building and the Patriots needed all the support they could get, it was an act of genuine courage.
The Revolutionary and the Continental Congress
Adams was one of the most influential members of the Continental Congress from 1774 through 1778, arguably its hardest-working and most consequential member if less celebrated than Jefferson or Franklin. He served on an astounding number of committees, wrote extensively on constitutional questions, helped draft the instructions to colonial delegations, and was the primary advocate in Congress for the appointment of George Washington as commander of the Continental Army — a political stroke of genius that secured Southern support for a war that might otherwise have remained a regional New England conflict.
He pushed for independence earlier and more forcefully than most of his colleagues, enduring months of frustrating negotiation with members who weren’t yet ready to make the break. When Jefferson was selected to draft the Declaration, it was partly because Adams recognized that a Virginian’s name on the document was strategically important, and partly because he was too busy with other committee work to do it himself. His later resentment that Jefferson received credit for the Declaration while his own indispensable role in building the case for independence went unrecognized was one of the more understandable grievances of a man constitutionally inclined toward grievance.
He negotiated the Treaty of Paris with Franklin and Jay, successfully resisting French pressure to accept terms that would have left the new republic weak and dependent, and achieved a settlement far more favorable to American interests than the military situation strictly warranted. The Mississippi River as the western boundary, fishing rights off Newfoundland, British recognition of American sovereignty — all of these were Adams’s achievements, fought for against both British resistance and French obstruction with the dogged persistence that was his signature method.
The Vice Presidency: The Most Insignificant Office
Adams served two terms as vice president under Washington from 1789 to 1797, a role he famously described as “the most insignificant Office that ever the Invention of Man contrived or his Imagination conceived.” The description was accurate. He presided over the Senate, cast tie-breaking votes, attended cabinet meetings at Washington’s discretion, and was consulted only occasionally. He had opinions on everything and was constrained from expressing most of them publicly. For a man of his intellectual energy and political engagement, it was a form of prolonged torture.
He used the time to think and write. He produced his “Discourses on Davila,” a series of essays on political theory that argued against the French Revolution’s utopian assumptions and predicted — accurately — that terror and military dictatorship would follow from the attempt to restructure society according to abstract rational principles without institutional constraints. Jefferson, then serving as Secretary of State and enthusiastic about the French Revolution, found the Discourses deeply offensive. The break between Adams and Jefferson that would dominate the politics of the 1790s can be traced in substantial part to this period.
The Presidency: The Decision That Cost Him Everything
Adams succeeded Washington in 1797, defeating Jefferson in the Electoral College by three votes, and found himself immediately confronted by the most dangerous foreign policy crisis in the republic’s short history. The French were seizing American merchant ships in retaliation for Jay’s Treaty, which they interpreted as an American alliance with Britain against France. American public opinion was divided: Hamiltonians wanted war with France, Jeffersonians wanted accommodation with France and confrontation with Britain. The war hawks within Adams’s own Federalist Party — led by Hamilton, who wanted a large army he could command — were pushing aggressively for military action.
The XYZ Affair of 1797-98 — in which French agents demanded bribes before they’d negotiate with American commissioners — inflamed American public opinion to a war pitch. Adams’s response, “Millions for defense, but not one cent for tribute,” became a national rallying cry. A quasi-war with France began, with American frigates engaging French privateers in the Caribbean. War fever in America was at a peak. Congress authorized an enlarged army. Hamilton was maneuvering to command it.
Adams made the decision that ended his political career and probably saved the republic. He sent a new peace delegation to France in 1798, over the fierce opposition of Hamilton and the war hawks in his own cabinet — several of whom were secretly taking orders from Hamilton rather than from Adams. The mission succeeded. Napoleon, who’d seized power in France, negotiated a new agreement. The quasi-war ended. The republic avoided a general war with France that Adams believed would have been financially and institutionally ruinous.
The cost was his presidency. Hamilton and the Federalist war hawks worked to destroy him in the election of 1800. Jefferson defeated him. Adams left the presidency in bitterness, riding out of Washington at dawn on Inauguration Day rather than attend Jefferson’s ceremony — a breach of protocol that reflected genuine anger but also genuine hurt. He felt he’d done the right thing and been punished for it. He was correct on both counts.
The Alien and Sedition Acts: The Stain That Won’t Come Out
Any honest treatment of Adams must address the Alien and Sedition Acts of 1798, the most significant constitutional failure of his presidency. The Acts made it illegal to “write, print, utter, or publish” criticism of the president or Congress that brought them “into contempt or disrepute.” They were used to prosecute Republican newspaper editors and political opponents. They were clear violations of the First Amendment’s free speech and free press protections. Adams signed them.
McCullough is somewhat too gentle on this. He acknowledges the Acts were “a blunder” but tends to contextualize them — the genuine war threat with France, the partisan venom of Republican newspapers, the real concern about French agents operating in the United States — in ways that soften the magnitude of the constitutional offense. A man who defended British soldiers at the Boston Massacre on the grounds that principle mattered more than political convenience should have known better. That he did not, or that the political pressures of the moment overwhelmed his principles, is one of the genuine failures of his presidency and one of the more important examples of how even the most principled politicians can betray their principles when sufficiently threatened.
Quincy, the Long Retirement, and the Jefferson Reconciliation
Adams retired to Quincy, Massachusetts, in 1801 and lived there for twenty-five years — the longest post-presidential retirement in American history until that point. He read voraciously, wrote prolifically, engaged in correspondence with politicians, intellectuals, and former colleagues, and watched the country he’d helped found develop in directions that alternately pleased and alarmed him.
The reconciliation with Jefferson, engineered by their mutual friend Benjamin Rush beginning in 1812, is one of the most remarkable relationships in American political history and the emotional center of McCullough’s book. The two men had been friends, then allies in the Continental Congress, then estranged by the political wars of the 1790s, then enemies — the bitterest of the founding generation’s bitter rivalries. Their correspondence after 1812 restored the friendship over fourteen years and 158 letters, ranging across every major political and philosophical question of the era with an intellectual range and mutual generosity astonishing given how much they’d hurt each other.
Adams was more generous in the reconciliation than he often gets credit for. He reached out first, acknowledged fault, engaged Jefferson’s ideas with genuine curiosity even when he disagreed. The letters show both men at their best — Jefferson elegant and speculative, Adams blunt and skeptical, both capacious enough to restore a friendship the politics of the 1790s had seemed permanently to have destroyed.
Both men died on July 4, 1826 — the fiftieth anniversary of the Declaration of Independence. Adams’s last words, according to tradition, were: “Thomas Jefferson survives.” Jefferson had died a few hours earlier, though Adams didn’t know it. The coincidence has always struck observers as too perfect to be true, and yet it’s documented and apparently genuine. The republic they’d helped create was fifty years old. The men most responsible for its founding had stayed to see it.
What McCullough Does Best
McCullough’s great gift is narrative clarity — the ability to take complex historical material and render it in prose that’s immediately accessible without sacrificing substance or accuracy. John Adams demonstrates this gift fully. He organizes Adams’s long, complicated life chronologically with clean chapter breaks that give readers natural stopping points without fragmenting the narrative. He uses primary sources — the Adams family papers are among the richest in American history — with skill and restraint, quoting at sufficient length to give Adams his own voice while providing enough context to make the quotes meaningful.
He’s particularly good at period texture — at rendering the physical and material conditions of Adams’s world in ways that make the abstract history concrete. The Atlantic crossing in winter. The discomfort of Philadelphia in August. The French court’s elaborate ritual of social performance. The cramped, cold winters of Quincy with inadequate firewood. These details are not decoration; they’re the material conditions within which Adams made his decisions, and understanding them helps explain why those decisions were harder than they appear in retrospect.
The Integrity Question
The deepest theme in John Adams is the relationship between integrity and political success, and the book’s implicit argument is that Adams represents the exception that proves the general rule. In politics, integrity tends to be punished. Taking unpopular positions because they’re correct costs votes, alliances, and influence. The politically successful politician is skilled at telling people what they want to hear, or at least at not telling them what they don’t want to hear. Adams was constitutionally incapable of this. He told people what he thought, even when what he thought was uncomfortable, and he paid the price repeatedly.
The defense of Captain Preston. The advocacy for Washington’s appointment when New England delegates wanted a New England commander. The Discourses on Davila, which alienated Jefferson and the Republicans. The peace mission to France, which destroyed his presidency. In each case, Adams did what he believed was right rather than what was politically advantageous, and in each case the short-term cost was significant. In each case, the long-term verdict of history has been that he was correct.
This pattern is instructive not because it suggests doing the right thing always works out — it very often doesn’t — but because it suggests the most important contributions to political life are sometimes made by people willing to absorb the cost of being right before the right is recognized. Adams contributed more to the republic’s foundations than he’s generally credited for, and he was less celebrated in his lifetime than he deserved precisely because his contributions were of the kind that are harder to see than battlefield victories or eloquent proclamations.
Adams and the American Character
One of the more interesting tensions in the book is between Adams’s pessimistic view of human nature and his genuine commitment to democratic government. He did not believe most people were wise, virtuous, or capable of sustained rational self-governance. He believed the opposite — that most people were selfish, vain, prone to passion over reason, and easily manipulated by demagogues. This pessimism was not misanthropy; it was empiricism. He’d observed human nature in the Continental Congress, in the courts of France and Britain, in the factionalism of the 1790s, and what he observed was not encouraging.
His response to this pessimism was not to abandon democratic government but to insist that it required institutional constraints, separation of powers, checks and balances, an independent judiciary, a free press, and leaders who would sacrifice popularity for principle when the moment required it. Democracy without these constraints would, he was certain, collapse into mob rule, demagoguery, or military despotism — as he believed the French Revolution had demonstrated. Democracy with these constraints was the best government human nature was capable of sustaining, and worth the effort of maintaining.
This view made Adams seem conservative to Jeffersonian democrats who believed more optimistically in human nature’s capacity for self-governance. It also made him prescient. His warnings about the dangers of populist demagoguery, about the instability of pure democracy without constitutional guardrails, about the tendency of revolutionary movements to eat themselves, have been validated repeatedly by subsequent history. He was not wrong about human nature. He was simply uncomfortable to be around when he was right.
Why John Adams Still Matters
McCullough’s biography appeared in 2001 and immediately became one of the best-selling biographies in American publishing history — remarkable for a book about a founder significantly overlooked by popular culture. The timing was partly fortuitous: a renewed national interest in the founding generation following the Revolution’s 225th anniversary and the political tensions of the late Clinton and early Bush eras. But the book earned its success by making Adams genuinely interesting — not as a curiosity or a corrective footnote to Jefferson, but as a fully realized human being whose life had direct relevance to ongoing American questions.
The questions Adams raises are permanent: What does political integrity actually cost? What are the institutional requirements of self-governance? What happens when popular opinion and correct policy diverge and a leader must choose? How do you sustain a republic whose survival depends on citizens and leaders choosing principle over advantage, repeatedly, across generations, without the guarantee that principle will be rewarded?
Adams’s answers to these questions were not optimistic, but they were honest. He didn’t believe doing the right thing was easy or that it would necessarily be rewarded. He believed it was required, that republics failed when their leaders stopped doing it, and that the accumulated choices of principled individuals constituted the only foundation stable enough to support genuine self-governance. He made those choices himself, paid the price, and lived long enough to see the republic survive and to believe — with some justification — that his choices had contributed to its survival.
David McCullough gives us a John Adams we can actually see and feel — irascible, brilliant, vain, principled, sometimes wrong, frequently right, always honest about both. It’s a portrait of a man the country undervalued in his time and has been slowly recovering ever since. The recovery is well-deserved. The republic he helped build needed someone like him more than it needed someone easier to love, and his willingness to be the person it needed rather than the person it preferred is the best case for his essential place in the founding story.
The European Diplomatic Years
Between his service in the Continental Congress and his vice presidency, Adams spent nearly a decade in Europe as a diplomat — first in France alongside Benjamin Franklin, then in the Netherlands securing important Dutch loans for the American war effort, and finally in London as the first American minister to the Court of St. James. These years were formative in ways his American admirers often overlook, and McCullough covers them with characteristic thoroughness.
The experience in France was professionally frustrating and personally educational. Franklin was lionized by Parisian society in a way Adams found simultaneously impressive and absurd. Franklin understood, with a social intelligence Adams lacked, that in 18th-century France, charm was a political instrument as powerful as formal argument, and that the image of the rustic American philosopher-sage was a persona to be cultivated and deployed strategically. Adams watched this performance with admiration for Franklin’s effectiveness and genuine incomprehension of its methods. He couldn’t perform; he could only argue, and Parisian salons weren’t particularly interested in argument from someone who wasn’t Franklin.
In the Netherlands he was more effective, because the Dutch were interested in financial instruments and geopolitical analysis rather than social performance, and Adams could supply both. He secured loans of five million guilders from Dutch bankers that were essential to keeping the Continental Army in the field during the war’s final years — a contribution to the American cause operationally as important as several significant military victories and one Adams received almost no public credit for, because it involved financial negotiations rather than battles.
London as minister was a different kind of difficulty. He was received by George III in a ceremony both men handled with formal dignity but which was freighted with the knowledge that Adams had spent a decade working to defeat the king he was now greeting as a diplomatic equal. His assessment of the meeting was characteristically blunt: the king was reasonable, the British political class was not, and the relationship between Britain and America would not be genuinely normalized for years. He was right about all three.
The Constitutional Theorist
Adams is the least-read of the major founders among the general public, partly because his major theoretical works — A Defence of the Constitutions of Government of the United States of America and the Discourses on Davila — are less accessible than the Federalist Papers and less eloquent than Jefferson’s major writings. But his constitutional thinking was deeply influential at the founding moment and remains genuinely interesting as political theory.
His core argument was about the necessity of balance — not the balance between different branches of government as typically described in American civics education, but the balance between different social forces. He believed every society contained two dangerous tendencies: the tendency of the wealthy and powerful to tyrannize the poor and weak, and the tendency of the many to tyrannize the few. Good constitutional design would pit these tendencies against each other through institutional structure, preventing either from achieving unchecked dominance. An independent executive, an upper chamber representing property and stability, a lower chamber representing popular will, and an independent judiciary — each checking the others, none dominant.
Jefferson thought this was essentially monarchism dressed up in constitutional language. Adams thought Jefferson’s democratic optimism was essentially utopianism dressed up in the language of natural rights. Both men were partly right and partly wrong, and their debate — conducted in their public writings and their private correspondence — is one of the most productive arguments in American political thought. The Constitution that was actually ratified incorporated more of both perspectives than either man fully wanted, which is perhaps why it has lasted.
The Human Scale of a Founding Life
What McCullough does throughout John Adams that distinguishes it from academic biography is maintain consistent attention to the human scale of a life lived at historical scale. Adams was not an abstraction or a symbol. He was a specific man who got seasick on Atlantic crossings and complained about it in letters home. Who worried about money — not obsessively, but practically, as someone who understood that law practice and public service were not compatible with financial security and who made the choice for public service while worrying about the consequences. Who missed his children during his long absences and whose relationship with his sons — particularly John Quincy, who accompanied him to Europe at the age of ten and became the sixth president — was conducted largely at distance and in writing.
Who argued with Abigail about everything and loved her without reservation for fifty-four years. Who was, for all his vaunted practicality, genuinely moved by natural beauty, by good music, by Cicero read in the original Latin. Who could be insufferable in a room and irreplaceable in a crisis. Who was, in sum, a human being — complicated and specific and recognizable — who happened to have been present at one of the most important moments in the history of self-governance, and who rose to it more fully than his more celebrated contemporaries are sometimes credited with understanding.
McCullough’s biography is a reminder that history is made by people rather than by forces, and that the specific qualities of specific individuals at specific moments determine outcomes that in retrospect look inevitable but were, at the time, genuinely contingent. Adams’s decision to defend Captain Preston was not inevitable. His peace mission to France was not inevitable. His retirement after one term — when another man in his position might have used the patronage and institutional power of the presidency to entrench himself — was not inevitable. It was a choice, made by a man with a clear enough sense of what the republic required to make the hard version of it, repeatedly, at significant personal cost.
That is the Adams McCullough recovers from the shadow of Jefferson’s eloquence and Washington’s grandeur: a man whose greatest virtues were not the ones most easily romanticized, but whose contributions to the republic’s foundations were no less real and no less essential for being difficult to summarize in a single resonant phrase. He deserves to be read, understood, and remembered on those terms. McCullough ensures that he is.
The Adams Legacy in American Political Thought
Adams’s influence on subsequent American political thought has been indirect but real. His insistence that republican government required institutional constraints on popular passion — that liberty without law was license, and that law without liberty was tyranny, and that the art of constitutional design was maintaining the tension between the two — became a central strand of American conservatism as that tradition developed in the 19th and 20th centuries. Edmund Burke’s conservatism and Adams’s constitutionalism share deep structural similarities: both rooted in skepticism about human nature, both insisting on the importance of institutions as constraints on impulse, both suspicious of revolutionary utopianism, both valuing continuity and gradual reform over radical reconstruction.
But Adams was also, in his commitment to individual rights, his insistence on jury trial, his defense of even the most politically inconvenient defendant, a figure claimed by the liberal tradition. The Adams who defended the British soldiers was as committed to the principles of what would later be called civil libertarianism as any figure in the founding generation. He didn’t fit neatly into either the conservative or liberal tradition as those traditions developed after his time, which may be part of why he was claimed by neither with particular enthusiasm and remembered by both with a certain ambivalence.
What he was, in his own terms, was a republican — someone committed to the proposition that government by law, exercised through institutions with defined powers and defined limits, was the best humanity could do, and that maintaining it required constant vigilance, constant willingness to put principle above advantage, and a realistic rather than romantic view of what human beings were capable of both at their best and at their worst. That proposition is neither comfortably liberal nor comfortably conservative in the contemporary sense, which may be the best evidence that it’s simply correct.
Reading Adams Today
McCullough’s John Adams rewards readers in 2026 for some of the same reasons it rewarded them in 2001: it’s a sustained portrait of a political figure whose greatest virtue was the willingness to be unpopular in service of correct judgment, and whose life raises with unusual clarity the question of what actually gets valued in political leaders. Success — the accumulation of political wins, the maintenance of power, the popularity that comes from telling constituencies what they want to hear? Or something harder to measure and less immediately rewarding: the willingness to take unpopular positions because they’re right, to absorb political damage in service of long-term institutional health, to prioritize the republic’s survival over one’s own career?
Adams valued the second and paid heavily for it. His single term in the presidency, his defeat by Jefferson, his decades of relative obscurity while Jefferson and Washington were elevated to the status of secular saints — all of it was the price of his particular kind of integrity. Whether that price was worth paying is a question each reader answers individually, but the biography makes clear that Adams himself believed it was, without self-pity and without illusion about what he had given up.
That combination — clear-eyed about the costs, committed to the principles anyway — is what makes Adams genuinely admirable rather than merely historically significant. McCullough gives us a portrait of a man who chose the hard right thing over the easy wrong thing across a career of extraordinary length and consequence, and who died believing, with some justification, that the country he’d helped build was worth the choices he’d made.
The republic is still standing. Adams was not wrong.
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