Senators Slow to Endorse Colleagues in Presidential Race

Four Senate Democrats hoping to secure their party's presidential nomination jetted back into the nation's capital today to cast votes on the farm bill and a tax proposal on the energy bill. The quartet -- Joseph Biden (Del.), Hillary Clinton (N.Y.), Christopher Dodd (Conn.) and Barack Obama (Ill.) -- engaged...

By Paul Kane | December 13, 2007; 4:40 PM ET | Comments (11)