Who are the declared candidates running for president in 2024?

President Joe Biden delivers the State of the Union address to a joint session of Congress on February 7, 2023, in the House Chamber of the U.S. Capitol in Washington, D.C. The speech marks Biden's first address to the new Republican-controlled House. He is also the first-ever president to deliver a State of the Union speech at 80 years of age. | Jacquelyn Martin-Pool/Getty Images

With the 2024 presidential election taking place later this year, several candidates have thrown their hats into the ring even though a rematch between President Joe Biden and former President Donald Trump has consistently remained the most likely outcome.

Nearly all challengers who came forward to present themselves as alternatives to the frontrunners for the Democratic and Republican nominations have dropped out of the race after both Biden and Trump secured massive leads in the popular vote and the delegate count following the early presidential primaries and Super Tuesday. While a handful of minor candidates remain, Biden and Trump have secured enough delegates to win the Democratic and Republican nominations, respectively.

The only major candidates that remain are Trump, Biden and a handful of third-party candidates whose impact on the race is uncertain as they fight for ballot access in key swing states. Here are a few facts to know about each of the declared candidates running for president, including those who have since withdrawn from the race.