Former UN Ambassador Nikki Haley, right and Florida Gov. Ron DeSantis, left, pointing at each other during the CNN Republican presidential debate at Drake University in Des Moines, Iowa, Jan. 10, 2024. Andrew Harnik/AP hide caption
primary debate
Republican presidential candidates from left, former New Jersey Gov. Chris Christie, former U.N. Ambassador Nikki Haley, Florida Gov. Ron DeSantis, businessman Vivek Ramaswamy and Sen. Tim Scott, R-S.C., participate in a Republican presidential primary debate hosted by NBC News Wednesday in Miami. Rebecca Blackwell/AP hide caption
In this file image, then-President Donald Trump and then-former Vice President and Democratic presidential nominee Joe Biden speak during the first presidential debate on Sept. 29, 2020, in Cleveland. Morry Gash/Getty Images hide caption
Tired of the Republican primary, GOP frontrunner Donald Trump shifts focus to Biden
From left, former Arkansas Gov. Asa Hutchinson, former New Jersey Gov. Chris Christie, former Vice President Mike Pence, Florida Gov. Ron DeSantis, businessman Vivek Ramaswamy, former U.N. Ambassador Nikki Haley, Sen. Tim Scott, R-S.C., and North Dakota Gov. Doug Burgum before a Republican presidential primary debate hosted by Fox News Channel Wednesday in Milwaukee. Morry Gash/AP hide caption