Will the pope's visit bring a political miracle of unity?

Aired: 9/23/2015 | 0:06:11 | Clip
When Pope Francis addresses a joint meeting of Congress, he'll speak from the same podium where Father Patrick Conroy, chaplain of the House of Representatives, delivers the opening prayer each morning. Father Pat joins Gwen Ifill to reflect on the pope's visit and his own role as a spiritual resource for a polarized group of lawmakers.