At a campaign rally in Des Moines, Iowa, on Thursday, President Trump slammed House Intelligence Committee Chairman Adam Schiff as “a sick puppy” who “lies awake at night” wondering how to impeach Trump, “sweating like a dog.”

“He’s a sick puppy, but you know what?” Trump asked. “Today I hit my highest poll numbers since I got elected.” The president went on to mock Schiff for his impeachment obsession: “He lies awake at night shifting and turning, shifty, shifting and turning in his bed, sweating like a dog.” Imitating Schiff, Trump continued: “‘How am I going to get him, he didn’t do anything wrong, how am I going to get him?’”

“What a sick guy he is,” Trump added. “Why am I not worried? I should be worried.”

“This is a happy period for us,” he said, as the crowd chanted, “USA!” “While we’re proudly creating jobs and killing terrorists, congressional Democrats are consumed with partisan rage and obsessed with a deranged witch hunt hoax.”