Quote from Ghost of Cutten:
They certainly contributed, with their insane policy of keeping interest rates extremely low from 2001 all the way up to 2004, 3 whole years after a very mild recession had ended, and by not doing anything at all to restrict untrammeled insane lending practises in the housing and sub-prime sector. Totally ignoring and being unaware of the fact that half the domestic banking system was in danger of going insolvent was also a blunder of epic proportions. The 2nd biggest property bubble in human history took place caused in large part by Fed policies, without them even realising it, and they did nothing to stop it or mitigate it once it started crashing.
So basically yes, the Fed directly caused almost the entire increase in national debt since 2007, mostly by public bank bailouts.