A Democratic congressman on Monday announced he will introduce a resolution to formally censure embattled Rep. Steve King for the Iowa Republican’s history of racist and xenophobic statements.

“Steve King’s pattern of comments harken back to the dark days of American history where his rabid, racist remarks would have been acceptable to a significant portion of our nation. This must come to a screeching halt right now,” Rep. Bobby Rush, D-Ill., wrote in a statement. “The U.S. Congress cannot be a platform for Steve King and those of his ilk. From Charleston to Charlottesville to Chicago to California, there is no home for this behavior, especially the floor of the United States House of Representatives.”