Barack Obama's credibility hits rock bottom after oil spill and Sestak scandal

"Even worse was Obama's refusal to say anything about the growing furore over White House attempts to persuade Congressman Joe Sestak to pull out of the Democratic Senate primary contest in Pennsylvania. Obama's advisers had preferred the Republican turncoat Senator Arlen Specter - and Sestak inconveniently let slip that he'd been offered a government job to step aside. "