Here are the results:
Basically, as Tabarrok's title points out, the rich pay for the federal government. The top 1% of earners alone paid for 27.6% of the total. The top 10% are majority owners, at 54.7%. The top 40% cover more than 85% of the tab. The bottom 40% are essentially free riders - they cover less than 5%.
Now isn't that interesting?
(1) If we are going to have a gigantic, bloated monstrosity of a federal government, then this result is inevitable. The rich are going to pay for it, because they're the only ones who can afford it.
(2) If we are going to have a gigantic, bloated monstrosity of a federal government, then the rich are not only going to pay for it, but they're also going to control it - because, just as they're the only ones who can afford to pay for it, they're also the only ones who can afford to buy it/bribe it/lobby it.
(3) And why not? They paid for it. It's theirs. Why would they, alone, of all people in all history, forego their individual interests in favor of some sort of common interest?