Harris, a retired Army brigadier general, and Fuller, a district attorney, are both seeking their parties’ nominations for a full term in the May 19 primary after the special runoff resolves the seat’s interim holder. The election comes three months after Greene resigned from Congress following a public rift with President Donald Trump, leaving the district without a representative and prompting the March 10 special election that advanced two candidates to Tuesday’s runoff.

The runoff is the second special election in less than a month for Georgia’s 14th District, after none of the 17 contenders won a majority on March 10. As a result, Tuesday’s contest in the northwest Georgia district matches the top two vote-getters from that first round: Harris and Fuller. In that March 10 election, Harris received the most votes, edging Fuller by about 2 percentage points, in part because the district’s sizable Republican vote was split among a dozen Republican candidates.

The congressional seat’s broader political stakes are tied to the U.S. House’s current arithmetic. Republicans hold a 217-214 majority, an additional seat is held by a former Republican who became an independent in March, and two seats remain vacant. The winner in Georgia’s 14th will fill one of those vacancies and can shift which party controls the chamber’s margin.

Harris is the candidate Democrats are backing to keep the district moving in their direction, but the district’s general-election history has leaned heavily Republican. In 2024, Trump carried the district with 68% of the vote, and Harris received 37% in March—slightly better than the roughly 36% he earned in his head-to-head matchup against Greene in 2024. Harris also improved his vote share in nine of the district’s 10 counties compared with 2024, and he outperformed former Vice President Kamala Harris’ 2024 presidential vote share in all 10 counties, though Greene carried every county in 2024.

The campaign environment for Tuesday’s runoff reflects both candidates’ paths to the nomination and their resources. Harris, who did not face major Democratic opposition in the March special election, raised $6.4 million for his campaign compared with about $1.3 million for Fuller. As of March 18, Harris had about $745,000 in the bank, while Fuller had about $53,000.

The race also includes a political contrast aimed at turnout and party alignment, with Trump’s endorsement of Fuller described as a potential boost in a district that broadly supported Trump in 2024. Still, the effect of such an endorsement could be influenced by runoff turnout dynamics, which are typically lower than presidential-election turnout and are often even lower in runoffs.

Turnout and vote-counting mechanics are also central to how quickly the outcome may become clear. Polls close at 7 p.m. ET. Any registered voter may participate in the special runoff in their district, regardless of whether they voted in the March 10 special election. The AP said Georgia does not register voters by party.

The AP’s decision team said that, as of Friday, there were about 571,000 total registered voters in the 14th District, including about 524,000 active voters. It also said that about 116,000 votes were cast on March 10, with roughly 52% cast before Election Day. For the runoff itself, nearly 47,000 ballots had already been cast as of Friday.

In the March 10 election, the AP reported initial results in the 14th at 7:05 p.m. ET, about five minutes after polls closed, and its final vote update of the night came from Paulding County at 9:51 p.m. ET with about 99.9% of total votes counted. The AP also noted that all 10 counties in the 14th District tend to release some or all absentee results in the first update, with Paulding and Cobb—two of the district’s largest and most populous counties—typically releasing early voting results as well. That could affect early vote totals if mail and early ballots lean Democratic in jurisdictions that release those results before Election Day votes are tallied.

Elsewhere in Georgia, Tuesday’s voting schedule includes additional special runoff elections for state Senate District 53 and state House District 94. Republicans control both chambers of the General Assembly, and the AP said the outcome of those two races will not threaten the majorities.