Challenge posed: Describe how Bush undid regulations that had any impact on the recession.
I've posed this challenge before, without ever receiving an answer. Usually it just gets me attacked as a Bush-lover.
You are right, he was technically "asleep at the wheel", but lets look further. It's not that he didn't notice the problems; he did, and he made some efforts to address them, but the filibuster monster known as congress wasn't going to have anything to do with it and he knew it. After 2002, when nobody saw this coming (the housing bubble really hadn't started yet, nor had derivatives gone truly haywire), Bush never had nearly the majority that Obama does. If Obama the charismatic demigod can't get 60 votes when 58+2 are Democrats, how was Bush supposed to do it? Let's face it, no appreciable piece of Bush's domestic agenda ever got enacted, and nothing would have no matter what he did. The only fiscal "damage" one can legitimately attribute to Bush is the spend of $1 trillion on a war of questionable value, but that's just deficit money that we're not paying for, and hasn't begun to affect the economy.
Fault lies in the previous century, and failure to deal with it lies in congressional gridlock, not anything either president has done.
On a separate note - can one "lose" $8 trillion if it was bubble money in the first place? The value of housing grew significantly from 2000-2009, it's just that that growth hasn't been linear. It went up a lot, then came down, but is still higher than when it started.