If a sitting Vice President dies, the Twenty-Fifth Amendment requires the President to nominate a successor, and that person becomes Vice President only after a majority vote in both the House and the Senate. There is no automatic replacement and no deadline on the President to act. Until confirmation is complete, the office sits empty, and several functions that depend on having a Vice President either shift elsewhere or stop working entirely.
The Constitutional Rule
Before 1967, the country had no way to fill a mid-term vice presidential vacancy. The seat simply stayed open until the next inauguration, and it did so sixteen separate times between 1789 and 1967.
Section 2 of the Twenty-Fifth Amendment, ratified in 1967, created the current mechanism. Whenever a vacancy occurs, the President nominates a replacement, and that person takes office once confirmed by a majority vote of both houses of Congress.1Congress.gov. Twenty-Fifth Amendment Section 2 The rule applies the same way regardless of whether the vacancy comes from death, resignation, removal, or succession to the presidency.
How the Replacement Is Chosen and Confirmed
The amendment says the President “shall nominate,” which creates an obligation but sets no clock. Nothing in federal law would prevent a long delay, though in practice nominations have come within days.
The nominee must meet the same eligibility rules as a presidential candidate: a natural-born citizen, at least thirty-five years old, and a resident of the United States for at least fourteen years.2Congress.gov. Article II Section 1 Clause 5 – Qualifications Beyond those minimums, the choice is entirely the President’s. Nominees typically go through extensive background checks covering financial records, conflicts of interest, and professional history before a formal nomination reaches Congress.
Both chambers then act independently. Committees in each hold hearings, questioning the candidate about qualifications, policy positions, and personal background. Hearings can run for weeks when a nominee’s record is complex or politically contentious. After hearings, each chamber votes separately, and the Twenty-Fifth Amendment requires a simple majority in each.3Congress.gov. U.S. Constitution – Twenty-Fifth Amendment The House and Senate do not have to vote on the same day or in a set order.
Once confirmed, the new Vice President takes an oath. It is the same oath that senators and representatives take, not the presidential oath, and the Chief Justice does not normally administer it. Presidents pro tempore, outgoing Vice Presidents, and personal associates have all done the swearing-in over the years.4The Joint Congressional Committee on Inaugural Ceremonies. Vice President’s Swearing-in Ceremony
What the Country Loses While the Seat Is Empty
The vice presidency is not ceremonial, and a vacancy has real operational effects.
Senate Tie-Breaking Votes
The Constitution makes the Vice President the president of the Senate with the power to break ties.5U.S. Senate. Votes to Break Ties in the Senate Without a Vice President, a tied vote fails. In a closely divided Senate, that shifts the math on every contested bill and nomination, since the majority party can no longer count on a tie-breaker.
Presidential Disability Proceedings
Section 4 of the Twenty-Fifth Amendment lets the Vice President and a majority of the Cabinet declare the President unable to discharge the duties of office. The Vice President is the indispensable actor. Without one, Section 4 cannot be invoked at all.6Congress.gov. The Twenty-Fifth Amendment: Sections 3 and 4 – Presidential Disability During a vacancy, the country has no constitutional way to address a situation where the President becomes incapacitated but refuses to step aside.
Presiding Over the Senate
When the office is empty, the president pro tempore takes over presiding duties, including administering oaths and signing legislation that passes the chamber.7U.S. Senate. About the President Pro Tempore The Senate is designed to function this way, but responsibilities still shift.
If the President Also Dies During the Gap
The most serious risk during a vice presidential vacancy is that the President dies or becomes incapacitated with no Vice President to take over. The Presidential Succession Act, at 3 U.S.C. ยง 19, is the backup. The Speaker of the House stands first in line, then the president pro tempore of the Senate, then Cabinet secretaries in a fixed order beginning with the Secretary of State.8Office of the Law Revision Counsel. 3 U.S. Code 19 – Vacancy in Offices of Both President and Vice President; Officers Eligible to Act
The statute requires the Speaker or the president pro tempore to resign from Congress entirely before assuming the presidency, not simply step aside from the legislative role. Cabinet officers face no comparable sacrifice because they already serve at the President’s discretion. Every person in the line must independently meet the constitutional eligibility requirements; anyone who does not is skipped, and the next eligible official moves up.
How the Process Has Played Out
Section 2 has been used exactly twice, and neither case involved a death. Both happened in the 1970s.
Vice President Spiro Agnew resigned on October 10, 1973. President Nixon nominated House Minority Leader Gerald Ford, and Congress confirmed him fifty-seven days later on December 6, 1973.1Congress.gov. Twenty-Fifth Amendment Section 2 When Nixon resigned in August 1974, Ford became President under Section 1 of the same amendment, creating a second vacancy. Ford nominated former New York governor Nelson Rockefeller, whose confirmation took roughly four months, with the House voting on December 19, 1974.
No Vice President has died in office since the amendment was ratified, so the procedure has never been tested under those exact facts. The legal process would be the same, though: nomination by the President, majority confirmation in both chambers, oath of office.