Writing at Investor's Business Daily, Andrew Malcolm whines that a Trump candidacy will cost the GOP Hispanic votes. There is no argument the Donald has been less-than-complimentary about the illegals here from Latin America.
On the other hand, relatively few Hispanics vote and most of those vote Democratic anyway. It isn't clear how many votes the GOP stands to lose.
You could argue that a Bush, Cruz, or Rubio candidacy might attract some Hispanic votes. I agree it could happen, although it remains to be proven.
On the other hand, how many Hispanics would vote for Walker, Kasich, or Fiorina but wouldn't vote for Trump? More than a handful, percentagewise? Unlikely.