Help me here: how many colleges are run by the federal government? I can only think of three: West Point, Anapolis, and the Air Force Academy at Colorado Springs.
What's the employment situation like at those places?
Anyway, I don't think Obama will be in much of a position to rewrite the laws of supply and demand. TAs make dirt wages because there's a lot of suppliers of that particular labor skill and so few purchasers in that labor market as to constitute a
monopsony. Wages will be low.
Probably some labor action would be the best way to get fair wages in that industry. I certainly hope Obama's Labor Dept. supports any such efforts