In the latest Marquette Law School Poll, Mandela Barnes leads Ron Johnson by 7 points in the race for U.S. Senate. Subscribe to WISN on YouTube now for more: http://bit.ly/1emE5YX Get more Milwaukee news: http://www.wisn.com Like us: http://www.facebook.com/wisn12 Follow us: http://twitter.com/WISN12News Instagram: https://www.instagram.com/wisn12news/