McMillan is a registered member of the Democratic Party. On December 23, 2010, however, he said that he would switch parties and run as a Republican in the 2012 U.S. presidential election, to avoid a primary challenge from President Barack Obama. He believes that his greatest political strengths include a mastery of social media, an ability to pinch pennies, and inimitable political vision. McMillan appeared at the Conservative Political Action Conference in February 2011. He also appeared at Northeastern University in March 2011, through the Political Science Student Association, where he discussed key issues.