From CBS News, which has the video:
A group of protesters seemingly affiliated with the "Occupy" movement interrupted President Obama's speech in Manchester, New Hampshire on Tuesday, engaging in a call-and-response protest for about 20 seconds before being drowned out by Mr. Obama's supporters.
"Mr. President, over 4000 peaceful protesters have been arrested while bankers continue to destroy the American economy," it said. "You must stop the assault on our 1st Amendment rights. Your silence sends a message that police brutality is acceptable. Banks got bailed out. We got sold out."