Stephen Colbert is mocking Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE Jr.'s "nothing burger" emails about setting up a meeting with a Russian lawyer offering compromising information about Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE, calling the conversations an "all-you-can-prosecute buffet."

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The late-night comedian noted on "The Late Show" that White House chief of staff Reince Priebus called Trump Jr.'s meeting a "nothing burger," but said the emails have turned it into an "all-you-can-prosecute buffet."

Colbert then started reading the emails out loud, but had a coughing fit.

"I’m sorry, I just got a little cough because of this smoking gun I just found," Colbert said while holding up a prop smoking gun.

Colbert slammed Trump Jr. for responding to Rob Goldstone's email by saying, "If it’s what you say I love it especially later in the summer," adding that he's "not talking about a sparkling rosé with some toasted figs and some soft brie."

Trump Jr. on Tuesday released a chain of emails about setting up a meeting with a Russian lawyer who claimed to have dirt on Clinton, then the Democratic presidential nominee.