Zach Galifianakis explains why he won't have 'mentally challenged' Donald Trump on 'Between Two Ferns' The Donald won't be feeling the fern. Speaking with the LA Times about the internet juggernaut that was his interview with Hillary Clinton, comedian Zach Galifianakis addressed whether he would consider having sniffle-prone Republican presidential nominee Donald Trump on "Between Two Ferns." "He's the kind of guy who likes attention — bad attention or good attention," said Galifianakis. "So you're dealing with a psychosis there that's a little weird. "I wouldn't have somebody on that's so mentally challenged. I feel like I'd be taking advantage of him. And you can print that." The largely improvised Funny or Die video featuring the former secretary of state and the star of "The Campaign" and "The Hangover" in a deadpan standoff clocked over 30 million views in a single day. Acknowledging Clinton was still recovering from pneumonia, Galifianakis wasn't shocked she had a sense of humor considering her long-lasting political career, saying she was "very game." "I don't think you can get as far as she has in American politics without a sense of humor — especially since she's been so forced to play the boys' (game), since that's where the power structure is, though it's changing," said Galifianakis. "But yeah, she definitely has a sense of humor."