PBS NewsHour full State of the Union special Jan. 20, 2015

Tonight on this special coverage of the 2015 State of the Union address, we broadcast President Barack Obama's speech, followed by the Republican response. Gwen Ifill and Judy Woodruff get analysis and insight on the speech from Mark Shields, David Brooks, Domenico Montanaro, Lisa Desjardin, Michael Beschloss and Beverly Gage.