North Dakota Rep. Kelly Armstrong took to Twitter on Tuesday night to criticize Rep. Alexandria Ocasio-Cortez, New York, after President Donald Trump's nationwide address focusing on the ongoing partial government shutdown.

Ocasio-Cortez represents the Bronx and Queens. She won her position against an incumbent in one of the biggest upsets of the midterm elections. She has become a favorite among democrats and is the youngest woman ever elected to the House. Ocasio-Cortez has an enormous social media presence and has attracted significant media attention since her candidacy.

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Armstrong tagged her in a tweet, saying "just watched your interview on @maddow. Yesterday @washingtonpost called you out for not having your facts straight during your interview on @60Minutes. Today you told @POTUS to get his facts straight...I'm confused." He added another tweet saying, "I'm just a non-celebrity new Member of Congress. Are you offering classes on hypocrisy? Is it a Dems only class?"

Ocasio-Cortez appeared Tuesday on the "Rachel Maddow Show" following Trump's Oval Office Address.

"In the actual address, there was falsehood after falsehood, and we have to make sure that we get our facts straight," she said on the show.

Ocasio-Cortez has been criticized for being factually inaccurate by The Washington Post for what Anderson Cooper said on "60 Minutes" was "fuzzy" math and statistical misstatements about Pentagon spending.

Armstrong tweeted at her from a new Twitter account created when he took office in the House. His feed on his campaign and congressional pages is generally non-confrontational. He frequently retweets Donald Trump Jr. or comments on North Dakota sports.

"(Ocasio-Cortez) was actually called out the day before on The Washington Post for not having her facts straight. I was watching this in real time, and the first thing out of her mouth was that the president didn't have his facts straight," Armstrong said. "There's plenty of things on the Democratic side to argue with about this president on this issue, but I just felt like that level of hypocrisy needed to be mentioned."