In a year when many voters say they’re not satisfied with a choice between Democrats and Republicans, the Libertarian party — which selected its nominee over the weekend — is looking for a bigger role in the presidential race. This episode: host/White House correspondent Tamara Keith, White House correspondent Scott Horsley, and editor/correspondent Ron Elving. More coverage at nprpolitics.org. Email the show at nprpolitics@npr.org.