The Texas senator has won the straw poll at the Conservative Political Action Conference. Donald Trump, who canceled his appearance at the last minute, finished a distant third.
The GOP presidential front-runner was expected to face a hostile crowd at the CPAC gathering, with some threatening a walk-out of his Saturday morning speech.
The four remaining GOP presidential candidates faced off in Detroit on Thursday evening just as sniping in the party to try and stop Donald Trump has reached a fever pitch.
Donald Trump drew fire in recent debates for his lack of specifics on how he would change the country's health care system. He released a plan Wednesday that is unlikely to satisfy critics.
Republicans opposed to Donald Trump are running out of time and options to stop him from being their nominee. Many are now talking about their last, best chance being at the convention.
In an unprecedentedly critical speech, Romney blasted almost every aspect of Trump's career and personality. Returning fire on Thursday, Trump again called Romney "choke artist."
As more critics point to an undercurrent of bigotry in some of Donald Trump's statements, journalists grapple with how to characterize what he says — and what he means.
Republican presidential candidates meet again Thursday night in their 11th debate. Just four men will be on stage: Donald Trump, Ted Cruz, Marco Rubio and John Kasich.
The New Jersey governor and former presidential candidate faces a storm of criticism at home for his decision to endorse Republican front-runner Donald Trump.