The 15 Most Consequential Vice Presidents, Ranked by the Record

The one real power, counted

The Constitution gives the vice president a single operational power: "The Vice President of the United States shall be President of the Senate, but shall have no Vote, unless they be equally divided." The Senate has kept the ledger since 1789, and it stands at 309 tie-breaking votes (Senate Historical Office, Votes to Break Ties). That ledger is the score column above, and it is the only official number the office produces.

The distribution is lopsided and revealing. Kamala Harris cast 33, an all-time record set in barely three years because she governed with a 50-50 Senate and post-2013 rules that let nominations and reconciliation bills pass by bare majority; John C. Calhoun needed nearly eight years to cast his 31 (Time, 2023). John Adams cast 29 when the whole Senate had 26 members. Meanwhile Joe Biden served eight full years and never broke a single tie. The number measures the Senate's math as much as the officeholder's diligence, which is why this ranking treats it as one component and not the whole story.

The Mondale template

For most of American history the vice presidency was a parking space. John Nance Garner, who held it for eight years under Franklin Roosevelt, is remembered chiefly for despising it. The office that exists today was designed in December 1976, when Walter Mondale sent Jimmy Carter a memo proposing something no vice president had ever had: general advisory access instead of line assignments, a West Wing office steps from the Oval, a standing private lunch, and full access to presidential paper. Carter accepted all of it (Miller Center). Every subsequent vice presidency, Bush's, Gore's, Cheney's, Biden's, Harris's, operated inside Mondale's architecture. Cheney ranks first because he pushed that architecture to its documented maximum, running energy policy, intelligence review, and war powers questions from the vice presidency itself. Mondale ranks second because he built the room Cheney worked in.

The transition between the two eras is visible in the ledger itself. Richard Nixon, ranked ninth, was the hinge: Eisenhower gave him real assignments, sent him abroad repeatedly, and left him presiding over the government's visible functions through three presidential illnesses, and Nixon still cast 8 tie-breaking votes on the side (Senate Historical Office; Miller Center). George H.W. Bush quietly cast 7 during the Reagan years, and every vice president since Mondale has kept the West Wing office. The office Garner mocked and the office Cheney ran are separated by a single typed memo and fifty years of precedent hardening around it.

An office the Framers built backward

The vice presidency began as a design error. Under the original Constitution the office went to the presidential runner-up, which in 1796 saddled John Adams with his chief rival Jefferson as his own vice president, and in 1800 produced an exact electoral tie between Jefferson and his running mate Aaron Burr that took the House 36 ballots to resolve. The 12th Amendment, ratified in 1804, separated the two elections and quietly demoted the office for a century and a half (Senate Historical Office, briefing on the Vice President). What the era left behind was procedural rather than political, and durable: Jefferson, presiding over a chamber he could not vote in, wrote his Manual of Parliamentary Practice, and the House of Representatives still incorporates it into its rules today. Adams used his 29 tie-breaking votes to settle questions as large as whether a president may remove executive officers without the Senate's consent, a question that shaped the entire executive branch (Senate Historical Office). The office's first two decades produced less power but more precedent than any since.

Succession is the office's hidden mandate

Nine vice presidents have become president mid-term: eight on deaths, one on a resignation. The ranking credits the ones whose vice presidency itself shaped the transfer. John Tyler, 31 days into the job in 1841, insisted he was president outright rather than a caretaker, a claim with no settled constitutional answer at the time; his precedent held through eight later successions and was finally codified in the 25th Amendment (National Archives). Harry Truman's 82-day vice presidency mattered for the opposite reason: he was kept so far outside the war's inner circle that he learned of the atomic bomb program only as president, and the shock of that gap permanently changed how administrations brief the second office (Miller Center). Gerald Ford's case completed the constitutional circuit, proving the 25th Amendment's appointment machinery worked under maximum stress in 1973 and 1974.

The modern office keeps setting records

The last decade has been the most active in the office's history by its own official metric. Pence cast 13 tie-breaking votes including the first ever to confirm a cabinet nominee. Harris then broke a 191-year-old record in under three years, and her 33 ties included the votes that carried the American Rescue Plan and the Inflation Reduction Act into law (NBC News, 2023; Senate Historical Office). The sitting vice president, JD Vance, reached 8 tie-breaking votes by January 2026, including passage of the 2025 budget reconciliation act and a January 2026 vote that turned back a Venezuela war powers resolution (Senate Historical Office; PBS, 2025). Vance is unranked here because grading an unfinished term against completed ones would be guessing. The trend, however, is documented: narrow Senates have converted the vice presidency's sleepiest formal power into a routine instrument of lawmaking. Nine of the office's 309 recorded tie-breaking votes were cast in the last eighteen months alone, and three of the last four vice presidencies rank among the six most active vote-breaking terms ever recorded (Senate Historical Office, Votes to Break Ties). An office designed as a waiting room now regularly decides what becomes law.