Carson was at center stage and Trump held his own, but the two senators are now the candidates to watch.
Webb or retired Gen. Wesley Clark could bring a veteran's presence if Clinton wins the nomination.
Here are some ideas for a nation at war with itself.
What does each candidate need to accomplish tonight?
Clinton's appearance was a daylong infomercial for her ability to remain calm under pressure.
It's due to the doctor's bedside manner.
She may have originally wanted a quiet retirement, but Candy Carson is out on the campaign trail for her husband.
For Democrats to beat Trump, they need to present the nation with his political opposite.
He is not afraid to go big on issues of importance to Latinos.
A look at some rural-oriented issues that might cause problems for Clinton in Iowa, New Hampshire and beyond.