Stephen Colbert mocks Biden's 'Grandpa’s had it with your lip' energy in clash with CNN reporter

President Biden emitted some "strong ‘Grandpa’s had it with your lip’ energy" Wednesday after his meeting with Russian President Vladimir Putin, late-night host Stephen Colbert claimed Wednesday night.

Then, doing a Biden impression, Colbert ripped off his suit jacket and shouted at an imaginary reporter to "Watch it, Mister!" and "Knock it off with the grab-a-- and the horseplay. This isn’t a dog-and-pony show. Were you born in a barn? If you were, grab a pail and start milking the cows because they’re coming home to roost, Little Boy Blue! I fought in Korea!" The liberal late-night host was referring to Biden snapping at CNN reporter Kaitlan Collins, who asked the president why he was "confident" Putin would change his behavior following their meeting in Switzerland.  Colbert called the meeting between Biden, 78, and Putin, 68, the "Boniva in Geneva." Boniva is used to treat osteoporosis.