WATCH: David Letterman Gives America 10 More Reasons to Second-Guess Donald Trump’s Presidency

David Letterman has been spending his free time in Late Show retirement writing more ‘Top Ten’ lists.

Letterman joined his comedian pals Martin Short and Steve Martin onstage of their A Very Stupid Conversation tour to spill some lesser-known facts about disgraced presidential candidate Donald Trump.

“I retired and had no regrets,” the former host pre-ambled his decalisticle. “And then a couple of days ago, Donald Trump said he was running for president.”

“I have made the biggest mistake of my life, ladies and gentleman.”

Thus began Letterman’s first Top Ten list since his retirement in May. You can watch his ten-poke stab at the Apprentice host in the video featured above, however, here are a few highlights:

Number 10: “That thing on his head was the gopher in Caddyshack.”

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Number 6: “Trump walked away from a moderately successful television show for some disillusional bullsh— Oh wait, that’s me.”

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Number 3: “Donald Trump has pissed off so many Mexicans he’s starring in a new movie called iNo Amigos!.

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Miss USA 2015Trump’s annual beauty pageant, will air on the Reelz network tonight, July 12 beginning at 8 p.m. EST. The telecast was dumped by NBC and Univision earlier this month in response to him calling Mexican immigrants “criminals” and “rapists” on his campaign trail.

In response, Trump slammed Univision with a $500 million lawsuit and banned their employees from his properties.