That’s the somewhat intriguing question raised by a Center for Immigration Studies report which that in 2006, during the height of the last proposed illegal alien amnesty, Republicans seemed to do better among Latino voters the less open borders they were. The difference is not that huge, but the candidates who scored A grades from Numbers USA got 27 percent of the Latino vote, tying with those who got C grades and well above those who got D and F grades.
Those who got D grades scored markedly lower despite being nearly the friendliest possible politicians on immigration issues.
As has been noted before, immigration is not nearly as great a priority for Latino voters as the pro-amnesty gang likes to claim. It may also be that when Latinos do vote for Republicans, they want strong candidates who project decisive leadership.
Reagan did well among Latinos while Bush I did badly, regardless of amnesty. Bush II improved his performance among Latinos before amnesty.
Strong Republican candidates tend to perform better among Latinos. Weak ones perform badly regardless of immigration. In this, Latino votes follow those of most Americans.