One of the hottest issues to emerge from the Republican primary debates — and a serious point of contention between candidates Mitt Romney and Texas Gov. Rick Perry — is whether undocumented/illegal aliens should receive in-state tuition benefits at public colleges and universities.

In a new video ad, Romney attacks Perry on in-state tuition for illegals:

“Who supports Governor Perry’s decision to give in-state tuition to illegal immigrants?”

Pictured: Barack Obama, Nancy Pelosi, Harry Reid

Vincente Fox, former President of Mexico: “I want to publicly recognize Governor Perry and the State of Texas by having taken that step forward when you decided to give access to Mexican migrants to universities in Texas.

Perry: “If you say that we should not educate children who have come into our state for no other reasons then they’ve been brought there by no fault of their own, then I don’t think you have a heart.”

Mitt Romney has a different view: “Four years of college, there’s almost a $100,000 discount if you’re an illegal alien to go to the University of Texas. If you’re a United States citizen from any one of the other 49 states, you have to pay $100,000 more. That doesn’t make sense to me.”