If a U.S. Senate election ends in an exact tie after every ballot is counted and recounted, state law decides what happens next, because no federal law sets a tie-breaking method. Many states break ties by drawing lots, which can mean a coin toss or pulling a name from a container. Others hold a new election or a runoff. Whatever the state does, the Senate has the final say, because the Constitution makes each chamber the judge of its own members’ elections.
In practice, an exact tie is extremely unlikely in a statewide race with millions of votes. Recounts almost always shift the totals by at least a few votes. But near-ties have happened, and they show how the system handles one.
What happens first when a Senate race is extremely close? #
Election night numbers are unofficial. Before anyone talks about a tie, election officials go through several steps.
Canvassing #
In the days after the election, counties finish counting and verify the results. That includes:
- Provisional ballots, counted after officials confirm the voter was eligible.
- Mail and military ballots that arrive after Election Day but meet the state’s deadline.
- Cured ballots, where voters fix problems like a missing signature within the state’s window.
Recounts #
Many states order an automatic recount when the margin falls below a set threshold, often 0.5% or less. In others, a losing candidate can request one, sometimes at their own cost. Recounts nearly always move the totals slightly as officials resolve ballots machines couldn’t read and correct small errors. Our guide to when recounts are triggered lists how the rules vary.
Legal challenges over disputed ballots can follow. Only after all of that, with a certified count that is still exactly tied, does a tie-breaking rule apply.
How do states break a certified tie? #
The Constitution’s Elections Clause (Article I, Section 4) lets states set the “Times, Places and Manner” of congressional elections, so the method depends on the state.
Drawing lots #
In many states, the tie-breaker for most offices is chance. The secretary of state or an election board might flip a coin, have candidates draw slips from a container, or draw cards. It sounds casual, but it’s binding under those states’ laws, and local races are settled this way every few years somewhere in the country.
A new election or runoff #
Some states require a new election for a tie in certain offices rather than leaving it to chance. States that already require a majority to win, such as Georgia, send a race to a runoff when no one clears 50%, and an exact tie would do that automatically. Our explainer on plurality vs. majority covers which systems require what.
Why the legislature no longer picks #
Before the 17th Amendment in 1913, state legislatures chose senators. Since then, senators must be elected by the people, so a legislature can’t simply choose the winner of a tied popular election.
Has a Senate race ever come close to a tie? #
No Senate race has ever been decided by a coin toss or drawing lots. Two races came close enough to show what happens instead.
New Hampshire, 1974: Wyman vs. Durkin #
This is the closest Senate election in U.S. history. Republican Louis Wyman led Democrat John Durkin by 355 votes on the first count. A recount put Durkin ahead by 10. The state’s Ballot Law Commission then reviewed disputed ballots and declared Wyman the winner by 2 votes.
Durkin took his case to the U.S. Senate, which spent months debating disputed ballots without reaching a decision. The Senate finally declared the seat vacant. The governor appointed former Senator Norris Cotton to hold it temporarily, and in September 1975 New Hampshire held a new election, which Durkin won comfortably.
Minnesota, 2008: Coleman vs. Franken #
On election night, Republican Senator Norm Coleman led Democrat Al Franken by 215 votes out of about 2.9 million. The margin was inside Minnesota’s automatic recount threshold, and the hand recount put Franken narrowly ahead. After a court trial over disputed ballots, Franken’s lead stood at 312 votes. The Minnesota Supreme Court upheld that result in June 2009, and Franken was sworn in that July, about eight months after the election.
Why does the Senate get the final word? #
Article I, Section 5 of the Constitution says: “Each House shall be the Judge of the Elections, Returns and Qualifications of its own Members.” You can read it on the Constitution Annotated site.
That means a state’s certification isn’t necessarily the end. If a candidate disputes a tie-break or a recount, the Senate can investigate through its Rules and Administration Committee, examine ballots itself, seat one candidate, or declare the seat vacant and leave it to the state to fill, as it did in 1975.
Why would one Senate seat matter so much? #
Control of the Senate decides who chairs committees, which bills reach the floor, and whether the president’s nominees for courts and cabinet posts get confirmed. Going into November 3, 2026, Republicans hold 53 seats, Democrats 45, and two independents caucus with Democrats. With 35 races on the ballot, a party can win or lose control by a few seats.
If the chamber lands at 50-50, the Vice President casts tie-breaking votes, which gives the Vice President’s party control. Our explainer on when the Vice President votes in the Senate covers how that has worked.
The races likely to end within a point or two are usually visible well before Election Day. Election Tracker’s Senate tab shows each race’s 30-day polling average and a lead chip, and you can pin the closest races to the top. A lead that stays inside a point or two in the average, with polls on both sides of zero, is the kind of race that can end up in a recount. Our list of which Senate seats are up in 2026 has the full set.
Frequently asked questions #
Has a U.S. Senate race ever been decided by a coin toss? #
No. Coin tosses and card draws have settled tied local and state legislative races, but no U.S. Senate race has been decided by chance. The closest races were resolved by recounts, courts or, in New Hampshire in 1975, a new election.
Can a governor appoint a senator to settle a tie? #
Not to pick the winner. A governor can fill a vacancy where state law allows, and if the Senate declares a disputed seat vacant, the governor may appoint someone to hold it until a special election. That happened in New Hampshire in 1975. The appointee serves only until voters choose a senator.
What happens to a disputed seat when the new Senate starts? #
The new Senate convenes on January 3. If a race is still undecided, the seat stays empty, and the state is represented by only one senator until the dispute is settled. Minnesota had one senator from January to July 2009 while the Coleman-Franken case went through the courts.
How close does a Senate race have to be for a recount? #
It depends on the state. Many trigger automatic recounts at margins of 0.5% or less, some at much smaller margins, and some only on request. In a state with 3 million votes, 0.5% is about 15,000 votes.