Try illegal aliens.
I always go to the polls but if I didn't that issue would get me there. But if anything resembling the Sphinctor/Bush Gold Card Shamnesty passes, Republicans are taking a real gamble that the increased turnout would work out in their favor.
I suspect both of Wyoming's Republican Senators, being the Chamber of Commerce sock puppets that they are, will vote for shamnesty. One of them is up in 2006 and if he votes for shamnesty he will receive a punishment vote to the Dimocrat from me. I'll forgive him for his disgusting vote for Medicare Prescription Drugs but I'm non-negotiable on the illegal immigration issue.
"...and I am not hearing of any similar initiative movement this year that will bring out the conservative base."
Try illegal aliens.