He gives 1% to charity. Mitt Romney, by contrast, gives 15%.
More here, and here. Note the utterly paltry amount of money Joe Biden gave to charity. See also Philip Klein. Anyone still trying to claim that there is something shady about Mitt Romney’s tax returns ought to be called out for lying, quite frankly. By contrast, plenty can be made about the fact that Romney donates a significantly larger percentage of his salary to charity than do the president and the vice president, who talk a good game when it comes to discussing the travails of the down and out, but who obviously don’t put their money where their mouths are.