Richard Painter, a frequent critic or 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's and former chief ethics lawyer for the George W. Bush administration, on Monday called for Rep. Steve King Steven (Steve) Arnold KingTrump, Biden deadlocked in Iowa: poll GOP leader: 'There is no place for QAnon in the Republican Party' Loomer win creates bigger problem for House GOP MORE (R-Iowa) to be expelled from the House after he shared a meme that imagines a modern day civil war.

"This is treason," Painter, who switched parties and ran in a Democratic primary for a Minnesota Senate seat last year, tweeted. "Steve King should be expelled from the House immediately."

This is treason.

Steve King should be expelled from the House immediately.



Steve King shares meme touting red states in potential modern-day civil war - CNNPolitics https://t.co/GI7mb1iGnC — Richard W. Painter (@RWPUSA) March 18, 2019

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The forceful condemnation from Painter, a former Republican who now says his positions fall in line with the Democratic Party, came just days after King posted a meme featuring an image of what a civil war between Democratic and Republican states may look like.

“Wonder who would win,” King said in a Facebook post on Saturday, followed by a smirking emoji. The post included an image of Democratic-leaning states fighting with GOP-leaning ones.

"Folks keep talking about another civil war. One side has about 8 trillion bullets, while the other side doesn't know which bathroom to use," the meme reads, which appears to be a reference to Democrats' support of gender-neutral bathrooms.

It is unclear who produced the original image. King deleted the image from his Facebook account on Monday.

Steve King Posts Meme Fantasizing About Violent Civil War Between Red and Blue States https://t.co/vC0LtITQD0 pic.twitter.com/AGgrFq1MSa — Mediaite (@Mediaite) March 18, 2019

King's office did not immediately respond to a request for comment from The Hill.

Painter launched a challenge against Sen. Tina Smith Tina Flint SmithThe Hill's Campaign Report: Trump and Biden vie for Minnesota | Early voting begins in four states | Blue state GOP governors back Susan Collins GOP Senate candidate says Trump, Republicans will surprise in Minnesota Biden promises Democratic senators help in battleground states MORE (D-Minn.) last year, but ultimately lost the primary in August.

King has faced frequent scrutiny for his rhetoric regarding issues such as immigration. The Iowa lawmaker was stripped of his House committee assignments earlier this year after asking The New York Times when terms such as white nationalist and white supremacist became "offensive."