Donald Trump Rips 'Distorted' Portrait of Himself in Colorado Capitol

10:20 AM PT -- A spokesperson from the Colorado governor's office tells TMZ ... "Gov. Polis was surprised to learn the President of the United States is an aficionado of our Colorado State Capitol and its artwork."

"The State Capitol was completed in 1901, and features Rose Onyx and White Yule Marble mined in Colorado, and includes portraits of former Presidents and former governors. We appreciate the President and everyone’s interest in our capitol building and are always looking for any opportunity to improve our visitor experience.”

Donald Trump is fuming over a painting of him hanging in the Colorado State Capitol ... calling it "purposefully distorted" and demanding it be taken down.

On Sunday night, DT fired off his complaint on Truth Social, saying ... "Nobody likes a bad picture or painting of themselves, but the one in Colorado, in the State Capitol, put up by the Governor, along with all other Presidents, was purposefully distorted to a level that even I, perhaps, have never seen before."

Trump compares his portrait to Barack Obama's ... criticizing the artist for making Obama look wonderful while calling his own "truly the worst." He jabs at the artist too, saying she "must have lost her talent as she got older."

The Prez makes it clear, he'd rather have no portrait at all than this one -- and insists Coloradans are also "angry" about it too.

He points the finger squarely at Governor Jared Polis to yank the portrait and says he should "be ashamed of himself."