Now you tell us

http://washingtontimes.com/national/20070425-110212-8486r.htm

Republican presidential hopeful Sen. Sam Brownback said yesterday he no longer supports the immigration overhaul bill that he helped pass in the Senate.
"I would not vote for the same bill," Mr. Brownback told reporters yesterday morning, saying that after the bill passed the Senate he had a chance to study its effects and decided it led to too much immigration.

Better late than never I suppose, but why now? It's not like the problems of the current immigration regime were some big secret last year. (Hat tip to Derb)