Newsbusters notes this exchange between Karl Rove and Matt Lauer:
ROVE: The biggest accelerant in this economic difficulty was the failure of the government to rein in Fannie and Freddie. It was the Bush administration trying to rein in Fannie and Freddie. A new senator came to the United States Senate in January 2005 and refused to join the reform efforts, in fact, joined a filibuster effort to, to on the, on the bill that the administration offered up to rein it in. That senator was-
LAUER: That senator was?
ROVE: -Barack Obama of Illinois.
Read the whole thing.
Update: On the other hand, the Obama of 2006 was sounding remarkably prescient about the crisis the Obama of 2009 would engender.