Why are you blaming Bush? He signed the first one before the wars were a twinkle in Osama's eye.
Congress created and passed them, and it was a bipartisan effort. The senate was 50/50, and the republicans only held 9 more seats in the house than the democrats.
If anything, blame Obama who came in on a recovery act, then extended them in 2010 - again, passed by congress and signed by Obama.
If you're going to say that a president should have acted differently, then you should be blaming Obama, who saw both wars and didn't let them expire as they would have if congress and Obama simply not acted.
Quite frankly, though, it appears that they are simply flying by the seat of their pants. There's no US Federal Budget. If there were, it most certainly wouldn't be balanced. Right now they seem to be making the best decisions they can in the face of absolutely no planning, or even economic direction for the future.
This has been going on for so long that we're past considering their actions negligence, and well into gross negligence.