Release The Returns!

We have the first solid poll:

By 54%-37%, they say Romney should release tax returns from additional years. Those calling for more disclosure include 75% of Democrats, 53% of independents and 30% of Republicans.

He needs more than 47 percent of independents and more than 70 percent of Republicans to stay in the running. So we are about to test the Palin principle: how little can a Republican candidate disclose and get away with it?

One obvious question: How will Mitt avoid answering the question of how many years of tax returns he has asked of his veep candidates when vetting them? If the answer is more than two, then the question becomes: why does Romney get to vet the full tax background of candidates for office – but not the American people?