For the less well-polling candidates, Tuesday night's contest presented one final opportunity to present clear contrasts for voters faced with a crowded field.
Paris should come up in tonight's debate, if only to ask Republicans about the backlash to their proposal to pull out of the deal.
Europeans are starting to worry about a Trump presidency.
Most Republican voters said they were not bothered by his remarks.
Others, however, say his rhetoric makes them uncomfortable.
All but one Senate Republican on Thursday blocked a gun control measure to prevent suspected terrorists from buying weapons.
Democrats calls for stricter gun laws and Republicans offered prayers to victims and their families.
The GOP’s 2008 presidential nominee hits Ted Cruz on national security.
If the Republican establishment gangs up on Trump, his supporters will sit out the election.
The president wants the U.S. to accept 10,000 Syrian refugees, but the GOP opposes.
Carson's remarks came after the real estate mogul went on a lengthy rant about him.
GOP presidential candidates will face off in their fourth debate of the election season.
Why does the surging Republican candidate say so many inflammatory things?
Fred Thompson, Watergate Warrior, Dead at 73
Candidates are no longer in line with the Republican National Committee.
The GOP nomination process is a hybrid of "The Bachelor"/"The Bachelorette" and "Big Brother" with the ethics of "Survivor."
Economy! Jobs! Taxes!
Recent moves in the Republican-controlled House suggest a thaw.
The retired neurosurgeon has surpassed the real estate mogul nationwide by 4 percentage points.
The brothers Bush took the stage in Houston, where George W. offered a strong testimonial.