Bernie Sanders set to launch his first TV ads in California
After a heated debate in Brooklyn, N.Y., Bernie Sanders flies to the Vatican to give a speech.
- Hillary Clinton and Bernie Sanders engaged in the most heated debate thus far in the campaign on Thursday
- Sanders faces a problem of unregistered voters backing him in New York. He’s also set to air TV ads in California
- Angry Sanders supporters may be driving away superdelegate votes
- Donald Trump escalates his feud with the party he’s trying to lead