Lester Holt's performance as moderator would prompt the former NYC mayor to do something dramatic.
Yahoo News looks at how the candidates compared on six key presidential qualities at Monday's debate.
Hillary Clinton hammers her GOP rival for offensive comments he made about a beauty pageant contestant.
While she used the term "racist" to characterize Trump's past comments, both Clinton and a top aide did not employ the word to describe him as a man.
Both candidates denied making statements that they are on the record as saying.
GOP presidential candidate Donald Trump says he held back on his final attack of Monday's debate with Hillary Clinton.
The debate moderator pointed out that the policy was ruled unconstitutional when the GOP nominee reiterated his support.
The Miami Marlins' star pitcher wanted to take a boat ride because he was upset and just wanted to get away.
"I was the one that got him to produce the birth certificate," Trump says when asked about his conspiracy theory.
Clinton took Trump to task on his refusal to release his tax returns, and he called her an ineffective politician.
Hillary Clinton’s health has been an issue in the campaign, but on Monday night it was Donald Trump who showed signs of a cold.
The accord between the country's government and its largest rebel movement ends a half-century of combat.
Who made the best impression at the first presidential debate? Expert guests weigh in with Katie Couric and Matt Bai.
A former Port Authority official testified that the "time for some traffic problems" email began the events in Fort Lee, N.J.
A disgruntled lawyer randomly shot at drivers before police shot and killed him, authorities said.
Europa's plumes may make it easier to learn whether life exists in the warm, salty ocean beneath its icy surface.
A showdown is set over the president's veto of a bill that would let families of Sept. 11 victims to sue Saudi Arabia.
The NBC News veteran is moderating his first presidential debate, and his performance will be closely watched.
The GOP nominee and the Dallas Mavericks owner have traded both glowing praise and withering insults.
The U.S. economy needs some fresh thinking, but the two leading presidential candidates draw ideas from the past.