Former Presidents are used to hecklers, but a robot? Bill Clinton was speaking in Iowa City Monday when a man dressed in a silver metallic suit made a scene.

The protester said he wanted Clinton to apologize for a comment he made in 1992 about a rapper named Sister Souljah and then threw colored cards into the air. As the protester was being escorted out of the room, Clinton told him he needed to find a more environmentally-friendly way to protest.