In a surprise announcement Tuesday, Jeff Flake of Arizona became the second Republican senator to announce he will not seek re-election in 2018. Flake delivered a blistering critique of President Trump on the Senate floor saying, "there are times where we must risk our careers in favor of our principles. Now is such a time." This episode: host/congressional reporter Scott Detrow, White House reporter Geoff Bennett, and national political correspondent Mara Liasson. Email the show at nprpolitics@npr.org. Find and support your local public radio station at npr.org/stations.