A TV ad released Thursday by Republican Rep. Chris Collins knocks his Democratic opponent for criticizing President Donald Trump, underscoring the popularity the president enjoys in the conservative western New York House district.

Collins, seeking re-election amid insider trading charges, has been a prominent and early supporter of Trump’s, having been the first House Republican to endorse him in 2016.

“Nate McMurray hates our values,” the ad’s narrator says. “He equates the NRA to homegrown terrorism and calls President Trump a ‘con artist,’ a ‘clown’ and ‘delusional.'”

The ad in part appears to be an effort to drive out support among the president’s base in the district, which voted for him by the widest margin among the New York House districts two years ago.