Late night host Stephen Colbert is having a field day covering President Trump’s feud with establishment conservatives. With Trump and Tennessee Sen. Bob Corker’s feud blowing up for the world to see on Tuesday, Colbert made a joke comparing the GOP’s inner battles to the Civil War, saying, “only this time, neither side is trying to help black people.”

“Well, I don’t know if you’re paying attention, but internal strife is tearing the Republican Party apart at the seams,” Colbert said. 

“It’s like a new Civil War,” he added, “only this time, neither side is trying to help black people.”

Colbert’s monologue came just hours after it was announced that Sen. Jeff Flake (R-Ariz.) would not seek reelection in 2018 and would instead stand against Trump and his agenda in the Senate for the remainder of his term.

Colbert, a frequent critic of Trump, specifically named Flake during his monologue, playing excerpts from the Arizona senator’s floor speech and joking that Flake resembled an “upright golden retriever.”

“Mr. President, I will not be complicit or silent,” Flake says in the short clip played by Colbert.

“No, I will be complicit and absent,” Colbert fired back.

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