Just a month after the general election, Louisiana voters are heading back to the polls. Today’s runoff election will fill the final open seat in the US Senate and two seats remaining in the House.

The runoffs are a product of the state’s unusual electoral system: instead of holding a regular primary ahead of the general election, Louisiana pits all candidates, regardless of party, against each other on election day. If no one candidate wins a majority of the vote, the top two contenders advance to a runoff election.

Senate

Results are expected after 9pm ET. Data via Associated Press.

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Republican John Neely Kennedy, the current state treasurer, and Democrat Foster Campbell, a member of the Louisiana public service commission, are vying to fill the final open seat in the US Senate. On November 8, Kennedy and Campbell beat out nearly two dozen other Senate hopefuls but fell short of the 50% mark, receiving 25% and 17.5% of the vote respectively.

Kennedy has held a confident lead in the runoff polls, but Democrats hope that Campbell can pull off an upset and narrow the Republican Senate majority to 51-49.

House

District 3 Results are expected after 9pm ET. Data via Associated Press.

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District 4 Results are expected after 9pm ET. Data via Associated Press.

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Louisiana’s 3rd congressional district is a guaranteed Republican win. Scott Angelle and Clay Higgins, both Republicans, secured 28.5% and 26.5% of the vote respectively in the general election, beating out 10 other competitors to advance to a runoff.

Democrat Marshall Jones and Republican Mike Johnson face off in Louisiana’s 4th congressional district. Johnson, “one of the Louisiana Legislature's most socially conservative members,” according to the Times Picayune, is favored to win.