Perry's slip was embarassing, but he should get a break. This can happen to almost anyone.
On a different note, I saw this article on BBC. So far, the economy, taxes and cuts have received a lot of attention in the debates, but there are other critical issues too. I agree with the writer of this articles, these questions will test the candidates. I would love to know what opinion Ron Paul, Mitt Romney, Herman Cain and Newt Gingrich have on these issues.
BBC News - PJ Crowley: 10 questions for the Republican candidates