Speaker of the House Kevin McCarthy will lead fellow Republican lawmakers on a trip to Arizona this week, part of an effort by his caucus to boost the profile of border security as an issue through messaging that spuriously links migrants to drugs and crime.This episode: political reporter Deepa Shivaram, congressional correspondent Claudia Grisales, and immigration correspondent Joel Rose.This episode was produced by Elena Moore and Casey Morell. It was edited by Eric McDaniel. Our executive producer is Muthoni Muturi. Research and fact-checking by Devin Speak.Unlock access to this and other bonus content by supporting The NPR Politics Podcast+. Sign up via Apple Podcasts or at plus.npr.org. Connect:Email the show at nprpolitics@npr.orgJoin the NPR Politics Podcast Facebook Group.Subscribe to the NPR Politics Newsletter.