The 30-second ad opens with a shot of Coffman, a 61-year-old Army and Marine veteran who fought in Iraq, looking directly at the camera.

“People ask me, ‘What do you think about Trump?’” he says. “Honestly, I don’t care for him much.”

A few moments later, he says: “I’m a Marine – for me, country comes first. My duty is always to you. So if Donald Trump is the president, I’ll stand up to him. Plain and simple.”