Okay, Mitt.  First of all, we shouldn't have to trust you.  Release your tax returns just like every other presidential candidate has done for the last 40 years.

Secondly, someone with your income should be paying 35% in taxes.  Obviously, you're taking advantage of tax loopholes that middle class taxpayers can't take advantage of.

Which is baaaaaad.

Obama campaign sez:

Mitt Romney today said that he did indeed ‘go back and look’ at his tax returns and that he never paid less than 13% in taxes in any year over the past decade. Since there is substantial reason to doubt his claims, we have a simple message for him: prove it. Even though he’s invested millions in foreign tax havens, offshore shell corporations, and a Swiss bank account, he’s still asking the American people to trust him. However, given Mitt Romney's secrecy about his returns, coupled with the revelations in just the one return we have seen to date and the inconsistencies between this one return and his other financial disclosures, he has forfeited the right to have us take him just at his word.