Will Voting for Senate's Amnesty Bill Hurt Presidential Hopefuls?

Four Republican senators frequently mentioned as presidential candidates in 2008 — Sam Brownback, Bill Frist, Chuck Hagel and John McCain — voted in favor of the Senate’s amnesty bill yesterday. Will this vote help or hurt them if they choose to run for President?

Help them: 1.9%
Hurt them: 96.1%
Won’t matter: 2.1%