For the past week, a viral battle has been brewing between Democratic presidential candidate Barack Obama and his Republican rival John McCain over housing. No, not the housing crisis that you think — not the one we hear about every night, the one that has caused the greatest home price decline since the Great Depression. Not that one that might cause Fannie Mae and Freddie Mac to collapse as early as this afternoon, according to CNBC’s Jim Cramer. No, what ignited this back-and-forth campaign has to do with the houses owned by the two candidates, as in how many they have and how they got them. This particularly silly series of video attacks began after John McCain admitted to Politico.com that he has no clue how many homes he owns — and Barack Obama immediately bounced on the blunder as proof that McCain is too out of touch with American voters.

Whether Obama owns one home and McCain owns seven or eight, both of them are worth a hefty fortune, according to CBS News and the New York Post. Watch these two YouTube videos below to witness some of the "housing war" campaign attacks.