Support WBURObama Hits Campaign Trail To Rally DemocratsPlay04:41Download AudioScott HorsleyFebruary 19, 2010 ShareObama greets Democratic Sen. Michael Bennet of Colorado (right) before speaking at a fundraiser for Bennet in Denver. (AP)
Obama greets Democratic Sen. Michael Bennet of Colorado (right) before speaking at a fundraiser for Bennet in Denver. (AP)