Republican primary voters, whether they're close primaries or open, are voting for anybody but candidates attached to the Republican establishment.
The pool of illegal immigrants is like a qualified bunch of people. You don't have to do surveys. You don't have to interview them. You know they are ready-made Democrat voters. Not only that, they are readymade Democrat constituents.
Legal immigration is a much tougher group of people to stereotype and to identify as potential new Democrat voters.
The way Obama voters and non-Obama voters deal with unemployment are a very different.
The Republicans need to work on registration and getting out their vote and their early voters and absentees. Grassroots stuff.