The head of The Washington Post's fact-checking department hit back at President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Tuesday after the president declared him "fake" and accused him of only accurately fact-checking Democrats.

Glen Kessler noted on Twitter Tuesday that Trump has cited his own work in the past, despite his repeated criticism of the Post and Kessler's fact-checking abilities, while retweeting the message in which Trump referred to him as a "Fake Fact Checker" that only works "for the Democrats."

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"The Washington Post is a Fact Checker only for the Democrats. For the Republicans, and for your all time favorite President, it is a Fake Fact Checker!" Trump wrote.

"Reminder: Trump cites the @washingtonpost Fact Checker when we give Pinocchios to Democrats," Kessler responded, before noting one example from 2017.

"Trump to Laura Ingraham on Nov. 2, 2017: 'Even a certain newspaper that I don't like very much came out today and they gave Schumer four... four Pinocchios, and they said because he was not telling the truth, when it came to the middle class, because he said it's for the rich,' " Kessler added, quoting the president in a second tweet.

Reminder: Trump cites the @washingtonpost Fact Checker when we give Pinocchios to Democrats https://t.co/0TN7WkaZAZ — Glenn Kessler (@GlennKesslerWP) February 19, 2019

Trump to Laura Ingraham on Nov. 2, 2017: "Even a certain newspaper that I don't like very much came out today and they gave Schumer four... four Pinocchios, and they said because he was not telling the truth, when it came to the middle class, because he said it's for the rich." — Glenn Kessler (@GlennKesslerWP) February 19, 2019

Trump's attack on The Washington Post continued Wednesday, when the president tweeted that the outlet was "fake news" and cheered on a student from Covington High School suing the newspaper for $250 million over its coverage of his viral confrontation of a Native American activist.

The newspaper responded to the lawsuit Wednesday, writing in a statement that the staff was “reviewing a copy of the lawsuit, and we plan to mount a vigorous defense.”