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.