Katie Colaneri reports on Donald Trump’s visit with black leaders in Philadelphia. Matt Katz looks into the history of armed security at polling places. In this week’s edition of What Are We Thinking?, Frank Newport, editor-in-chief at the Gallup Poll, joins Newsworks Tonight’s Dave Heller to discuss the “labor” in labor day. Continuing on the theme of polling, Carl Van Horn, professor of public policy at Rutgers University, joins the show to give details to a new Rutgers study on confidence in the job market. Laura Benshoff heads to Norristown, where a group of nuns is continuing the work of Mother Teresa.