It might be a little early to say that, isn't it? I mean FDR inherited quite a mess, but he didn't seem to have any problem getting re-elected. Same with Reagan.
Obama's lucky, though, that this whole thing blew up now and not six months from now.
This disaster will be remembered as Dubya's last parting splatter of crap on a giant turd of a presidency (fairly or unfairly). It's up to Obama to figure out how to clean it up without just smearing it deeper into the carpet.