How a House Special Election Works When a Seat Goes Empty

The constitutional rule is short and strict

When a United States senator dies or resigns, most states let the governor appoint a temporary replacement until voters can elect a successor. The House is different by design. Article I, Section 2 of the Constitution says that when vacancies happen in the representation from any state, the executive authority of that state shall issue writs of election to fill those vacancies (U.S. Constitution, Art. I, Sec. 2; Congressional Research Service, House Vacancies: How Are They Filled?). There is no appointment path into a voting House seat. The district elects a replacement.

That is slower than a Senate appointment. It is also more direct. The people of the district choose the person who will cast their votes for the rest of the term. In the summer of 2026 that rule is not theory. The Clerk of the House lists four open seats, and two of them already have election dates on the page (Clerk of the House, Members and Vacancies).

Who sets the date

Federal law requires a special election. State law writes the schedule. Governors and secretaries of state issue the writ, pick primary and general dates inside statutory windows, and apply the same ballot rules the state uses for regular House races unless a special statute says otherwise (Congressional Research Service, House Vacancies). That is why California, Georgia, Florida, and Texas can each have a vacant House seat and still run on different clocks.

As of early August 2026, California's 14th votes August 18 and Georgia's 13th holds a runoff August 25. Florida's 20th and Texas's 23rd still show dates as to be determined on the Clerk's vacancy list (Clerk of the House; Ballotpedia, special elections to the 119th Congress). The federal Constitution forces an election. The state calendar decides when the ballots land.

Three common ways the ballot is built

States do not use one special election template. Three patterns cover most of the modern cases.

First is a top two primary, California's model for both regular and special House races. Every candidate of every party appears on one ballot. The top two vote getters advance to a general election, even if both are from the same party. In the June 16, 2026 special primary in California's 14th, Democrat Aisha Wahab took 42.82 percent and Democrat Melissa Hernandez took 16.76 percent; both advanced because neither cleared a majority and they were the top two (Alameda County Registrar of Voters, certified results; California Secretary of State). The August 18 special general is therefore an all Democratic runoff in form, produced by a nonpartisan top two rule rather than a party primary.

Second is a majority runoff, Georgia's model for the 13th District special. Candidates of all parties can appear on the first ballot. If no one wins more than half, the top two return for a second round. On July 28, 2026, Democrats Marcye Scott and Everton Blair advanced after Scott led near 46 to 47 percent and Blair near 36 to 37 percent, with no majority (Georgia Recorder, July 28, 2026; Ballotpedia, GA-13 special). The August 25 runoff finishes the job.

Third is a party primary plus general on an accelerated calendar, the pattern many states use when a vacancy opens mid term. South Carolina used a majority threshold inside its Republican special Senate primary on August 11: Darline Graham at 32.7 percent and Ralph Norman at 24.6 percent advance to an August 25 runoff because no one reached 50 percent (New York Times, August 12, 2026). That race is a Senate special, not a House special, but the majority runoff logic is the same institutional idea: first place is not a win until the rules say it is.

What a special decides, and what it does not

A House special election fills the remainder of the current Congress. The winner sits until January of the next Congress, when the full term winner elected in November is sworn in. In deep partisan districts the special almost always keeps the seat in the same party. California's 14th and Georgia's 13th are both strongly Democratic on the Cook Partisan Voting Index and related measures, so the August specials are expected to restore Democratic votes on the floor rather than flip the chamber (Ballotpedia, special elections 2025-2026; Cook Political Report, House ratings).

The midterm majority is a different machine. Cook's August 10, 2026 board rates 19 House districts as Toss Ups, with 184 Solid Democratic and 185 Solid Republican seats around them (Cook Political Report, August 10, 2026). Control of the next House will be decided inside that competitive band on November 3, not inside the deep blue specials that refill empty chairs. US Political Rank keeps both stories on the board: the vacancy calendar in its recent count of open seats, and the competitive map in its ranking of the 20 most competitive House districts of 2026.

Why the design is worth keeping in view

Four empty chairs make floor arithmetic tighter. The live House count is 218 Republicans, 212 Democrats, one independent, and four vacancies (House Press Gallery, Party Breakdown). A working majority of those present and voting can be smaller than 218 on any given roll call. Filling seats on a published schedule is how the chamber returns to a full roster without shortcutting the voters.

The contrast with the Senate is the point of the design, not a bug. Most Senate vacancies get an appointed interim member within days so the state keeps two votes while an election is scheduled. House vacancies stay empty until the district votes. Both paths are constitutional. Both are running in 2026. For the parallel Senate rules, see the site's explanation of how a Senate seat is filled when it goes empty. For the live special dates, watch August 18 and August 25, then watch Florida and Texas put dates on the two remaining open House seats.