That is a rather simplistic analysis. What %age of voters you think will vote for a candidate who labels other countries as 'evil', 'axis of evil' or 'terrorist nations'? Not many at all in 08.
This is a nuance in bigger scheme of things but it is pretty important seen in conjunction with our recent war and foreign policies.
Tancredo was against visas for students from 'terrorist nations' more so than this ad's tone suggests RP is, where did he end up?
Ron Paul campaign is making a blunder here imo.