"It was a very unusual political year," he said.
The former GOP rival cited the vacant Supreme Court seat as the reason for his endorsement.
Clinton jokes it's "worth looking into" legislation to prevent Trump from running again.
Rep. Tulsi Gabbard (D-Hawaii) will not pick between Tim Canova and Debbie Wasserman Schultz.
Welcome to THE TRAIL 2016, your daily rundown from The Hill on all the latest news in the White House, Senate and House races.
Donald Trump and Hillary Clinton are getting straight to the point.
A day after Trump...
"The whole world is watching us," Rep. Emanuel Cleaver says.
Clinton slams Trump for comments he made in 2006.