Washington (CNN) The National Republican Congressional Committee has pulled its support for a New Jersey Republican congressional nominee who has said diversity leads to Muslims killing Christians.

Seth Grossman is running for New Jersey's 2nd Congressional District, where Republican Rep. Frank LoBiondo is retiring after holding the seat for 24 years.

He won the Republican primary in New Jersey, and the National Republican Congressional Committee initially endorsed his bid for Congress on June 6.

On Monday, the liberal media watchdog group Media Matters for America published a report that said Grossman had promoted opinion pieces from white nationalist websites.

"Bigotry has no place in society—let alone the U.S. House of Representatives. The NRCC withdraws our support of Seth Grossman and calls on him to reconsider his candidacy. The people of New Jersey's 2nd District deserve an inclusive Republican candidate who will be a trusted conservative voice in Congress," committee Chairman Steve Stivers said in a statement.

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