If Mitt Romney loses the South Carolina primary Saturday, he can only blame himself for his two mediocre debate performances this week.. Unless you are the moderator of the debate asking questions about condoms or second-marriages, it is hard to get booed at a Republican debate. But Romney got booed heartily last night when he again gave an equivocal answer on when, and how many, of his tax returns he would release.

This was not a surprise question. Both Democrats and Republicans have been raising the issue for weeks. Romney should have had an answer ready Monday night. The fact that he still didn’t have a firm answer ready by Thursday night is almost criminal campaign negligence.