Ohio Gov. John Kasich called a key aspect of Donald Trump's immigration plan "a stupid argument" in what was one of the most spirited exchanges of the fourth Republican presidential debate on Tuesday.
Kasich slammed Trump's proposal to deport the estimated 11 million undocumented immigrants currently in the United States. "Come on folks, we know you can't pick them up and ship them across the border. It's a stupid argument. It's not an adult argument," Kasich said.
"All I can say is you're lucky in Ohio that you struck oil that's for one thing," Trump shot back, a reference to fracking.
Moderators of the debate sponsored by Fox Business Network and the Wall Street Journal attempted to jump in as the two sparred.
"I don't have to hear from this man," Trump said. "Believe me. I don't have to hear from him."