Sestak-Specter Reax

Menendez: "I have tremendous respect for Arlen, who has been a loyal member of the Democratic caucus."

Kaine: "Congressman Sestak and Senator Specter both campaigned tirelessly across the Keystone State in support of President Obama's efforts to help middle-class Americans."

Rubio: "The American people are rejecting politicians like Arlen Specter and Charlie Crist who stand for nothing but their own political self-interest."

Trumka: "America's workers give their heartfelt thanks to Senator Specter for his distinguished career fighting for working families."