Rep. Joe Sestak's (D-PA) latest ad targeting Sen. Arlen Specter (D-PA) in the tightening Democratic Senate primary ties the ex-Republican to former President George W. Bush and former Alaska Gov. Sarah Palin.
It also twice shows a clip of Specter saying, "my change in party will enable me to be re-elected."
"Arlen Specter switched parties to save one job -- his, not yours," the narrator says while a picture of Specter and Palin appears on screen.
The ad also plays a clip of Bush saying, "I can count on this man. See, that's important. He's a firm ally."
The TPM Poll Average for the May 18 primary shows Specter in the lead over Sestak by a margin of 45.6% to 35.2%.