The following article is from factcheck.org.
It’s true that key Democrats opposed the Federal Housing Enterprise Regulatory Reform Act of 2005, which would have established a single, independent regulatory body with jurisdiction over Fannie and Freddie – a move that the Government Accountability Office had recommended in a 2004 report. Current House Banking Committee chairman Rep. Barney Frank of Massachusetts opposed legislation to reorganize oversight in 2000 (when Clinton was still president), 2003 and 2004, saying of the 2000 legislation that concern about Fannie and Freddie was “overblown.” Just last summer, Senate Banking Committee chairman Chris Dodd called a Bush proposal for an independent agency to regulate the two entities “ill-advised.”
But saying that Democrats killed the 2005 bill “while Mr. Obama was notably silent” oversimplifies things considerably. The bill made it out of committee in the Senate but was never brought up for consideration. At that time, Republicans had a majority in the Senate and controlled the agenda. Democrats never got the chance to vote against it or to mount a filibuster to block it.