Hillary Clinton

Rhea Beddoe, 34, of New York City, walked out of the convention Monday, saying she had enough of Sanders supporters who started booing Senator Elizabeth Warren as soon as her speech began.

"This is my third convention, and I've never seen anything like this," she said. "The Bernie people are now like Trump people. They are very confrontational."

Beddoe is easily identifiable as a Clinton supporter by her five Hillary pins, a homemade dress with Democratic donkeys on it and fingernails painted red, white and blue.

"The speakers couldn't even say anything without them booing," Beddoe said. "They are really aggressive."

Outside the perimeter, Sanders supporters line the fence. Whenever a Clinton supporter walks by, clad in buttons or pro-Clinton shirts, the crowd roars: "Never Hillary!" and "Bernie! Bernie!" A few delegates chant back, "I'm with her!" as they walk by on the other side of the fence toward the arena....