Several recent polls show Gov. Ron DeSantis of Florida losing ground in the Republican presidential primary, both nationally and in early-voting states.
The numbers undermine an argument pushed by Mr. DeSantis’s campaign: that the primary is effectively a two-way race in which he is the only candidate who can consolidate support against former President Donald J. Trump.
A CNN/University of New Hampshire poll released Wednesday found that in New Hampshire, home to the first Republican primary, Mr. DeSantis had lost more than half of his support since the last U.N.H. poll two months ago. He had just 10 percent in the poll — not only far behind Mr. Trump (39 percent), but roughly tied with Vivek Ramaswamy (13 percent), Nikki Haley (12 percent) and Chris Christie (11 percent).
In Iowa, which will hold the first Republican caucus in January, a Fox Business poll released Wednesday showed him at 15 percent, more than 30 points behind Mr. Trump and not far from third place, with Ms. Haley at 11 percent. Unlike the New Hampshire poll, the Fox poll didn’t show Mr. DeSantis actively shedding support — he was down only one point compared with the outlet’s July survey, which is not significant. But it showed no progress for him as the time he has to make gains grows shorter.
The picture was similar in South Carolina, where another Fox Business poll found him at 10 percent, significantly behind not only Mr. Trump, who was at 46 percent, but also Ms. Haley, the state’s former governor, at 18 percent. In July, he had been roughly tied with Ms. Haley.
And nationally, a Quinnipiac University poll released last week showed Mr. DeSantis at 12 percent — a full 50 points behind Mr. Trump and six points below where he was in August.
A spokesman for Mr. DeSantis did not immediately respond to a request for comment on Thursday.
Ruth Igielnik contributed reporting.