After denouncing the bank to a cheering crowd and calling its executives "bloodsuckers" for accepting bailout money and refusing to help the suffering homeowners they "preyed on," Williams was stopped by security guards at the door and told the branch was closed. The mob then chanted "open the door" until Williams was let in, at which point he closed his account.

Williams told HuffPost that when campaigning in New York City, he met at least two people on every block with mortgage troubles. He said he doesn't want the bank to use his money to "further deteriorate the community" he represents, especially in light of chief executive Jamie Dimon's recent $17 million bonus.

"It's incredible what these banks are making people go through," he said. "It's disgusting. They're like bloodsuckers, just sucking the lifeblood out of communities and refusing to help out. I understand that people need to get paid to get the best and brightest and these bonuses help with that, but you can't do that and then not assist the community and then get a taxpayer bailout to the tune of billions of dollars. That's just greed at its worst."