Cody Keenan talks to NPR's Tamara Keith about writing for Barack Obama, the impact of Donald Trump's rhetoric and whether a president needs to be a compelling speaker to be an effective leader.He's the author of a new book, Grace: President Obama and Ten Days in the Battle for America.This episode: White House correspondent Tamara Keith.Learn more about upcoming live shows of The NPR Politics Podcast at nprpresents.org.Support the show and unlock sponsor-free listening with a subscription to The NPR Politics Podcast Plus. Learn more at plus.npr.org/politics Connect:Email the show at nprpolitics@npr.orgJoin the NPR Politics Podcast Facebook Group.Subscribe to the NPR Politics Newsletter.