Although the de factor GOP presidential nominee had seemed open to the idea when asked by TV host Jimmy Kimmel, "it seems inappropriate that I would debate the second-place finisher," he says now.
Although at least one more debate is scheduled for March 21, Thursday's had the feeling of a finale. The themes were mostly policy oriented, with a few tiffs over who's likeliest to win in November.
In the spin room, reporters clamor for quotes and candidates weave their positive narratives. It's a quite a sight, sure — but in the age of social media, has it become irrelevant?
GOP front-runner Donald Trump, upset over his treatment by Fox News and by top anchor Megyn Kelly, is boycotting the final debate ahead of the Iowa caucuses.
With less than three weeks to go before voting begins, watch for skirmishes to break out at Thursday's Republican debate — from attacks on Donald Trump to establishment candidates vying for position.
Will they accept? The five candidates are vying to replace Sepp Blatter, who presided over soccer's world governing body until his suspension in October.
National security and terrorism have been a top issue for Republicans, but they have gained even more importance after the Paris and San Bernardino, Calif., attacks.
Former Maryland Gov. O'Malley won cheers referring to "that immigrant-bashing carnival barker Donald Trump," and adding "the symbol of America is the Statue of Liberty, not a barbed-wire fence."