GOP campaign chief: Steve King's comments, actions and retweets 'completely inappropriate'

Rep. Steve StiversSteven (Steve) Ernst StiversBill requiring carbon monoxide detectors in public housing passes House The Hill's Morning Report — Trump and the new Israel-'squad' controversy Republicans offer support for Steve King challenger MORE (R-Ohio), the head of the GOP campaign arm in the House, condemned Rep. Steve KingSteven (Steve) Arnold KingOcasio-Cortez rips Steve King after he shares video drinking from toilet-fountain hybrid at border Steve King says he drank from toilet at detention center Steve King jokes about China forcing Muslims to eat pork MORE (R-Iowa) for his remarks that supported white nationalist politicians.

"Congressman Steve King’s recent comments, actions, and retweets are completely inappropriate. We must stand up against white supremacy and hate in all forms, and I strongly condemn this behavior," Stivers tweeted

Stivers, who chairs the National Republican Congressional Committee (NRCC), is among the most prominent party members to speak out against King.

The Iowa congressman has stoked controversy throughout his career.

He has said diversity is not America's strength, endorsed a white nationalist candidate in the Toronto mayoral race and recently met with members of a far-right Austrian group with links to the Nazi Party.

"If they were in America pushing the platform that they push, they would be Republicans,” King told The Washington Post on Saturday, defending the meeting.

King's comments to the news outlet came after a gunman killed 11 people at the Tree of Life synagogue in Pittsburgh, and allegedly spouted anti-Semitic slurs during the incident.

Intel and Land O'Lakes have in recent days announced they will no longer make financial contributions to King's reelection campaign.

King has served in the House since 2013. He is favored to win reelection this year, though a poll released Tuesday showed his lead over Democratic challenger J.D. Scholten was down to 1 percentage point.

Scholten has outraised King in the race thus far, pulling in more than $1.4 million in contributions. The NRCC has no investments in the district.

The Democrat in a tweet applauded Stivers.

Stivers appeared on a pair of Sunday talk shows last weekend alongside his Democratic counterpart, Rep. Ben Ray Luján (D-N.M.). The two men called for unity and a cooling of political hostilities after violent week that saw the synagogue shooting and a spate of bomb threats against prominent Democrats.

“I think we all bear some responsibility and we need to try to clean up our act and try [to] bring civility to our Congress and frankly to our dialogue,” Stivers said on NBC's "Meet the Press."

He noted that the NRCC previously pulled funding for New Jersey congressional candidate Seth Grossman after it was reported he shared multiple racist articles on social media.

--Updated at 2:36 p.m.