Former President Clinton and President Obama at the White House; December 10, 2010. Jim Watson /AFP/Getty Images hide caption

itoggle caption Jim Watson /AFP/Getty Images

Former President Clinton has campaigned on behalf of Rep. Kendrick Meek, the Democratic candidate for Senate in Florida.  John Raoux/AP hide caption

itoggle caption John Raoux/AP

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