 Rick Davis had the title of McCain's campaign manager throughout 2008, but his role was reduced when Schmidt was given control.Davis was previously the campaign's chief executive, and had become campaign manager when John Weaver, McCain's chief aide, and Terry Nelson, his previous campaign manager, resigned on July 11, 2007.Davis was also campaign manager during McCain's 2000 presidential campaign, when Weaver had been McCain's chief campaign strategist.