Romney vs. Perry on immigration at GOP debate

In an already testy debate, Mitt Romney and Rick Perry got into a fight over Romney's hiring of a lawn-mowing company that had hired undocumented immigrants in the past.

"Those people that hire illegals ought to be penalized, and Mitt, you lose all of your standing in my perspective because you hired illegals in your home and you knew about it for a year." Perry said. "The idea that you stand here before us and talk about that you're strong on immigration is on its face the height of hypocrisy," he said at the CNN debate in Las Vegas, Nev., an early voting state that Romney won big in 2008.

Read more on The Hill's Ballot Box blog.