That said, Trump getting 28% would not be unthinkable. Romney's self-deportation comments were considered to be anti-immigrant and he still got 27%.
Well, just a little bit of difference between advocating self-deportation, and calling them rapists, making a wall along the southern border your signature campaign policy and vowing to deport all the undocumented immigrants (aka possibly members of their family, friends, or people they know)
Romney came pretty close to all three. I know for a fact he once made a statement saying they were bringing crime. He endorced the fence alonge the entire border, and called for deporting all illegals. He also got Tom Tancredo's endorsement in 2007, and thats all you need to know.
I don't know if it is because of his denouncement of Trump or whatever, but people seem to forget just how hard Romney beat the dead horse on immigration to get to the right of McCain and Rudy in the primary.