Also in that Bloomberg post about Walker, I note the gap between Republican politicians and Republican voters on immigration. Gallup just responded to a question I sent the organization for some numbers on this. It turns out that as of January 2015, 49 percent of Republicans want less immigration, 35 percent want immigration kept flat, and 15 percent want higher levels of immigration. There are more Republican presidential candidates representing that 15 percent than that 49 percent.