Donald Trump said Wednesday that he’d like to “take out” the families of terrorists.

“I would knock the hell out of ISIS… [and] when you get these terrorists, you have to take out their families,” the Republican presidential candidate said on Fox & Friends. “I say ISIS is our number one threat, we have a president who doesn’t know what he is doing and all he’s worried about is climate change, he thinks climate change is something that’s going to go kill us.”

Trump, who regained his standing atop the GOP field in a new national poll out Wednesday, has enjoyed a boost thanks in part to heated rhetoric about Muslims following the terrorist attacks in Paris last month. He said he was concerned about civilian casualties but that he believed militants are using civilians as human shields.

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