“Not an oxymoron, but rather a redundancy.”
No, it’s an oxymoron because he qualified “neocon” with “Rep.”
Synonyms of neoconservative 1 : a former liberal espousing political conservatism 2 : a conservative who advocates the assertive promotion of democracy and U.S. national interest in international affairs including through military means neoconservatism ˌnē-ō-kən-ˈsər-və-ˌti-zəm noun