McCain camp says Obama’s words have “short half life.”

Douglas Holtz-Eakin a policy advisor with the John McCain campaign criticizes Sen. Barack Obama for reversing his positions on a whole host of issues. In attacking, Holtz-Eakin says “words from the Obama campaign have a very short half life.” Holt-Eakin was joined by Jeffrey Liebman from the Obama campaign for an AARP forum on paying our nation’s future bills by the next president. (1:19)
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