HARRISONBURG, Va. (AP) – The chairman of GOP presidential front-runner Donald Trump’s campaign in Virginia says he plans to run for governor in 2017. Corey Stewart, who is also chairman of the Prince William County Board of Supervisors, told The Associated Press on Saturday that he plans to launch an official campaign in October. Stewart, best known for taking an aggressive stance against illegal immigration, said his conservative credentials should help him secure the GOP nomination. Republicans are currently scheduled to pick their candidate for governor next year at a convention instead of a primary. Conventions generally favor conservative candidates. Other GOP gubernatorial hopefuls include former Republican National Committee Chairman Ed Gillespie and U.S. Rep. Rob Wittman. Former Attorney General Ken Cuccinelli, an outspoken conservative like Stewart, said Saturday he is not running.