Article Photos: Chapter V: Obama's toughest critics on the Left



Illinois Gov. Rod Blagojevich, left, U.S. Sen and Democratic presidential hopeful Barack Obama, center, and Chicago mayor Richard M. Daley, right, watch a video during a rally to celebrate the selection of Chicago as the U.S. representative in the international selection process for the 2016 Summer Olympics Chicago, Monday, April 16, 2007. (AP Photo/Charles Rex Arbogast)

Illinois Gov. Rod Blagojevich, left, U.S. Sen and Democratic presidential hopeful Barack Obama, center, and Chicago mayor Richard M. Daley, right, watch a video during a rally to celebrate the selection of Chicago as the U.S. representative in the international selection process for the 2016 Summer Olympics Chicago, Monday, April 16, 2007. (AP Photo/Charles Rex Arbogast)