Nikki Haley
Republican presidential candidate, former UN Ambassador Nikki Haley, speaks during a campaign event at Exeter High School on January 21, 2024, in Newmarket, New Hampshire.
  • On Sunday, Florida Gov. Ron DeSantis dropped out of the 2024 presidential race.
  • Now, only two major Republican candidates remain: Trump and his former UN Ambassador, Nikki Haley.
  • Given Trump's massive lead, Haley's best chance for the nomination is to outlast his campaign.

After only one primary election, the playing field to become the Republican presidential nominee has already boiled down to two final candidates: former President Donald Trump and his former Ambassador to the UN, Nikki Haley.