Conservatives were up in arms this week after the White House invited the rapper Common to participate in a poetry event. Last night, Jon Stewart showcased how Fox News pundits have distorted the issue with their "Common is a dangerous rapper who defends cop killers!" narrative. It looks like the faux controversy will go on another day: On tonight's Factor, Bill O'Reilly—who "fought the good fight years ago against gangsta rappers years ago"—struck back at Stewart and challenged him to a debate.