Florida Gov. Ron DeSantis, once a leading Republican challenger to Donald Trump, ended his campaign on Jan. 21 and threw his support behind the former president.
DeSantis' withdrawal, after months of waning support, leaves only low-ranking Nikki Haley standing between Trump and the GOP nomination for November's US presidential election.
In a video message, DeSantis said that after his second-place finish last week in the Iowa caucuses, he could not "ask our supporters to volunteer their time and donate funds if we do not have a clear path to victory. Accordingly, I am suspending my campaign today."
The decision came less than two days before the New Hampshire primary, where polls show him far behind front-runner Trump and former UN ambassador Haley.
"It's clear to me that the majority of Republican primary voters want to give Donald Trump another chance," DeSantis said, noting that he had differences with the former president, particularly over the coronavirus pandemic.
"He has my support because we cannot go back to the old Republican guard of the past or to the reworked form of warmed-up corporatism that Nikki Haley represents."
Last Tuesday, Trump stormed to victory in Iowa. 51% of Republican voters chose the twice-impeached former president over DeSantis, who won just 21%, and Haley, who won 19%.
Neither candidate has lost the race after winning the first two states, and Trump would almost certainly declare the Republican nomination over with a victory in New Hampshire.
In a statement, his staff said he was "honored" to support DeSantis and urged Republicans to rally behind him, dismissing Haley as "the candidate of the globalists and Democrats."
"It's time to choose wisely," the statement said.
In her own statement, Haley warned that the United States "is not a country of coronations."
"Only one state has voted so far. Half of its votes went to Donald Trump and half didn't ... Voters deserve to say whether we're going to go down the Trump and Biden road again, or if we're going to go down a new conservative road," she said. /BGNES