There's only ONE WAY that he can "pay for everything". If you read economic history, increases in the money supply (which is by the Federal Reserve) always caused inflation followed by deflation. The "good" starts to show in 9 months. The inflation starts to show in 18 months. Then during the deflation, there is unemployment.
So, YOU and I will PAY FOR it, first we pay for the money given to banks. Then we'll pay for the interest on that, through inflation. Then we'll pay for it from deflation.
One thing to worry about is that the inflation might rekindle another Savings & Loan debacle so we'll have to bail them out next! Yeah, Obama is an idiot and his buddies, Geithener and Bernanke, ought to take a course (or at least the book by Milton Friedman, the guru of economics. But then again, they are maybe doing ALL THIS on purpose, to RUIN the USA and take us down a few notches on the world scene, leading to a one-world government where all nations are equal and none are excellent)