Here are some interactive tools to let you explore the President’s recent budget proposal, where that money comes from, and where it goes. First, from the Washington Post, a look at 30 years of budgets: Revenue is on the left, expenses on the right; click on any box to see the percentage change since 1981; bars are colored by the president’s party.

Next, a more detailed treemap from the NYT, but only covering the 2012 values and change from 2010.