Zach Galifianakis jokes about Donald Trump's oral hygiene

Zach Galifianakis clearly is not a Donald Trump supporter.

The Hangover star recently revealed that he does not want the Republican presidential nominee on his show Between Two Ferns as he was sure Trump wouldn't understand the gags. Last week, the talk show had Democratic nominee Hillary Clinton as a guest.

"Interview Donald Trump? I don't know if he would get it," Galifianakis said, adding that Trump has the mind of an 11-year-old. "I don't really think he would understand what's going on. And plus, I would feel like it would um ...we don't have much in common," the actor said.

"I bet his breath stinks," Galifianakis said, not missing a chance to make a joke. "By the way, I met him and I know his breath stinks. So do his sons."

Bad breath wasn't an issue at Monday night's presidential debate, but Trump's loud sniffles definitely drew attention to the state of his health. The internet soon came up with interesting theories on what could be ailing the presidential hopeful, and The Late Show's Stephen Colbert joked that Trump "sounded like he was fighting off a cold with cocaine."

Trump reacted to the issue on Tuesday blaming the microphone for all the breathing noises viewers heard. According to the National Post, he called the microphone terrible, and said "maybe it was good enough to hear breathing. But there was no sniffles." Trump also noted that he did not have allergies or a cold.

He also told Fox News that his microphone was going on and off and that its volume was lower than Clinton's. "I wonder, was it set up that way on purpose?" he asked. "I don't want to believe in conspiracy theories, but it was much lower than hers."