If you thought you'd seen everything during a GOP presidential debate, you were wrong. The tenor was set when Donald Trump referenced the size of his, um, member.
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.
Donald Trump and Hillary Clinton are expected to up their delegate leads and pull away from their rivals. But those aren't the only things that could happen. Be ready for surprises.
It's the day when the most states vote and the most delegates are at stake. It can be determinative in who becomes the presidential nominee for either party.
More Republicans have voted in early primary states than ever before, while Democratic turnout has dropped off from 2008's historic numbers. But that might not equal success in November for the GOP.
In any normal year, a Republican who wins big in New Hampshire and South Carolina would practically be seen as the presumptive nominee. So why isn't that happening this year?
Evangelical voters have faith in Donald Trump, but there's still an opening for Marco Rubio in a much clearer establishment lane after Jeb Bush's exit. Plus: Clinton wins big with older, black voters.
The former Florida governor, a son and brother of presidents, raised enormous amounts of money and spent more on TV ads than any other candidate, but he couldn't overcome a change-hungry electorate.