Excellent questions that should be asked!

Governor Romney: You've said that you have used every legal method to reduce your tax liability. You've also said that as president you would close tax loopholes in order to help finance a major across-the-board tax cut. What specific tax loopholes have you used that you would close? A followup: Would you close the loophole that allows private-equity managers to treat their income as capital gains, subject to a 15 percent tax, even when they risk no capital of their own?

President Obama: You have spoken eloquently of the need to reduce the influence of big money in politics. What specific measures will you advance if you are reelected to accomplish this goal?