Donald Trump has visited Iowa and New Hampshire more frequently in recent months, though skipping the retail politicking that has historically defined the campaign culture of the early states. It hasn't seemed to impact his standing in the polls though — his rivals continue to stagnate with no clear way to resolve their collective action problem.This episode: political correspondent Susan Davis, campaign correspondent Franco Ordoñez, and national political correspondent Domenico Montanaro.The podcast is produced by Casey Morell and Elena Moore. Our editor is Eric McDaniel. Our executive producer is Muthoni Muturi.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.