Obama: Social Security checks 'not guaranteed'

NEW YORK (CNNMoney) - President Obama issued a broadside Tuesday in the debt ceiling debate, saying in a high-profile interview that he cannot ensure government benefits - including Social Security - will be paid if Congress fails to act.

"I cannot guarantee that those checks go out on August 3rd if we haven't resolved this issue. Because there may simply not be the money in the coffers to do it," Obama told CBS News.