Republican presidential candidate Rick Santorum addresses supporters at a campaign rally in Fond du Lac, Wis., on Sunday. Jae C. Hong/AP hide caption

itoggle caption Jae C. Hong/AP

Actor Mike Myers (left) and rapper Kanye West are seen in footage from a 2005 NBC television special as part of relief efforts following Hurricane Katrina. During the program, West commented that “George Bush doesn’t care about black people.” NBC hide caption

itoggle caption NBC

Sept. 27, 1994: Then-House Minority Whip Newt Gingrich and other Republicans unveil their "Contract with America" at a Capitol Hill rally. John Duricka/AP hide caption

itoggle caption John Duricka/AP