About 22 minutes into the Nevada Democratic debate, a heckler in the audience interrupted the proceedings, saying "these are f**cking race-based questions coming from you two, these are race-based questions..."

There was silence from the candidates and the moderators for about eight seconds with no mention of the heckler. Tim Russert, continued with his question for Sen. Hillary Clinton which focused on her characterization that Sen. Obama "is raising false hopes."