I hope you don't mind me just addressing this part of your post.
First of all, Bush didn't try to rein in anything. In fact when states tried to control subprime lending, the Bush administration sued them to pre-empt (aka effectively strike down, nullify) state laws and subject the lenders to far more lax federal rules as enforced by industry lackeys in OCC and elsewhere. These guys:
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Second, Rep. Barney Frank and Sen. Chris Dodd are
Democrats. The GOP was in control of the House from January 1995 through January 2007. The housing bubble rolled over in the summer of 2006. So during that 12 year span covering all of the housing bubble blowing up and bursting, Rep. Frank was in the minority party and didn't lead ANY committees.
Party divisions of United States Congresses - Wikipedia
The GOP controlled the Senate for a similar period - January 1995-Jan 2007 except for part of the two year period between 2001-2003.
So it's curious you place all the blame on a couple of Democrats, in the minority for ALL the relevant 12 year period in the case of Barney Frank and for all but about 18 months of that 12 year period in the case of Sen. Dodd and place NO blame on anyone in the GOP who actually HAD CONTROL OF CONGRESS FOR ALMOST THE ENTIRE RELEVANT PERIOD. And as you know, the regulators from January 2001 through January 2009 answered to President BUSH (R), not the Democrats in the minority in Congress.
It's almost like you don't care about facts but just have to find a way to blame Democrats even when doing so requires you to rewrite the history of Congress during the relevant period and make members of Congress NOT IN CHARGE more powerful than the Congressmen who actually WERE in charge. Amazing stuff to watch, especially since this crap has been debunked dozens of times on DP.