The raw exit polls via CBS are here.

Romney overwhelming won the Hispanic vote, which was 9% of the total.  Romney is the only major candidate who has a clear "no amnesty" position (although every single candidate, both Dem and GOP is promising to give corporations their global labor arbitrage agenda and the H-1B "outsourcing" Visa, including Romney).

So, this is something to look at for what I've been trying to say I see no correlation to be "open borders"(no controls de facto of immigration) and that Hispanic voters will block vote on "comprehensive" immigration reform.