But the only way to do that is to produce Romney’s tax returns, and legally, only Romney can do that.
This is not like Reid claiming Romney is an alien from another galaxy who is able to mimic humans perfectly (well, except when talking about “the aircraft”). This is like Reid claiming that Romney has seven toes on his left foot. If it’s true, Reid probably can’t prove it without violating privacy laws. But if it’s false, Romney can destroy Reid’s credibility with very little effort.
And the question is, why wouldn’t he do that?
The claim that Obama wasn’t born in the US was patently ridiculous, given the fact that the Bush Administration assigned him millions of dollars worth of Secret Service protection, and obviously would not have done that for an ineligible candidate. And yet, Obama went ahead and released his birth certificate in June of 2008 when the clamoring of the idiots became a distraction.
The claim that Romney has used accounting tricks and arcane loopholes to legally avoid paying taxes is not in the least ridiculous. Indeed, it accords with everything we know about him. The longer he refuses to release his returns, the more his credibility suffers, and the less people think about the economy.