Here are all the insulting nicknames Trump has used for 2020 Democratic candidates

Former Vice President Joe Biden is a frequent target of Trump's, who he routinely refers to as "Sleepy" Joe in an effort to paint the Democrat as low energy.

Trump also calls Biden "Creepy" to mock him for inappropriate behavior around women.

Read more: The 23 women who have accused Trump of sexual misconduct

Before boarding Marine One on Tuesday, Trump gave Biden a new nickname, saying, "I call him 'One Percent Joe,' because until Obama came along, he didn't do very well."

Trump uses "Pocahontas" for Massachusetts Sen. Elizabeth Warren. He uses it as a slur against Warren's past claim of Native American heritage. When Warren announced her 2020 presidential bid, Trump also alluded to the forced relocation of Native Americans in the 1800s, know as the Trail of Tears.

Trump has called Pete Buttigieg "Alfred E. Neuman," suggesting the South Bend, Indiana mayor looks like the famous character from MAD Magazine.

When Minnesota Sen. Amy Klobuchar kicked off her 2020 presidential campaign in the middle of a blizzard, Trump wrote on Twitter that "she looked like a Snowman(woman)!"

Trump branded New York Sen. Kirsten Gillibrand a "lightweight" in 2017 after she called for him to resign from the White House.

As a New Yorker, Trump is no stranger to current New York City Mayor Bill de Blasio, who he called "the worst mayor in the U.S." in May.

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