Attacking Obama for his association with Bill Ayers -- the unrepentant Vietnam-era terrorist who should have been jailed four decades ago for bombing New York City Police Headquarters, the United States Capitol building, and the Pentagon -- is a legitimate tactic.

CNN: Commentary: McCain campaign following in Hillary's footsteps

They arrived at the Department of Health and Human Services, a giant cinder-block building that stands close to the United States Capitol, and found the mood on the sixth floor rather festive.

NEWYORKER: Romney��s Dilemma