Washington (CNN) A Holocaust denier is now officially the Republican nominee in a Chicago-area House race after running unopposed in Tuesday's primary.

Arthur Jones' campaign website includes a section titled "Holocaust?" and he has been involved with anti-Semitic and racist groups since the 1970s, according to the Anti-Defamation League.

The Illinois Republican Party denounced Jones' campaign earlier this year, saying there is "no place for Nazis like Arthur Jones" in the GOP or the country.

"The Illinois Republican Party and our country have no place for Nazis like Arthur Jones. We strongly oppose his racist views and his candidacy for any public office, including the 3rd Congressional District," Illinois Republican Party Chairman Tim Schneider said previously in a statement.

The National Republican Congressional Committee, which is leading the party's effort to keep the House in November, will not endorse Jones, NRCC spokesman Matt Gorman said.

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