It is likely Congress as a whole will only consider such sweeping reform and spending if the military is cut back in Iraq, etc.
This gives the administration an opportunity to cut back and save face since the humanitarian effort must proceed. When the big gov and mercy programs fail -- as some of them surely will --- the Dems will have both a messy Iraq situation AND a stagnant U.S. gulf recovery on their backs in 2008
BTW, I thought it was a truly great speech by a truly great (and very smart) President.