His latest spot accuses his rival of being "out of touch," chastises him for not answering Politico when asked how many houses he and his wife own.
"Call it 'Country Club Economics.' How many houses does he own? John McCain says he can't even remember anymore. Well, it's seven."
Watch it above. Read script here.
Ad will air on national cable. Amount of buy and how long it's running unknown.
Plus: Obama aide Gibbs also hits McCain on gaffe in Fox News interview, saying "It's like Wheel of Fortune. Spin the wheel and figure out how many houses John McCain has."
