Veteran journalist Cokie Roberts, who joined an upstart NPR in 1978 and left an indelible imprint on the growing network with her coverage of Washington politics, has died. She was 75. Roberts died Tuesday because of complications from breast cancer. This episode: White House correspondent Tamara Keith, national political correspondent Mara Liasson, and Up First host Steve Inskeep. Email the show at nprpolitics@npr.org. Find and support your local public radio station at npr.org/stations.