Why is the US pushing for tariffs on its trade partners?

A trade war between the US and its neighbours averted for now. President Trump has delayed imposing tariffs on Canada and Mexico, but not China. Why is he pushing for the levies, and at whose expense? Can Washington afford to alienate its biggest trade partners? In this Episode:    Dmitry Grozoubinski, Director, Explain Trade.  Greg Swenson, Founding Partner, Brigg Macadam.  Gavin Fridell, Professor, Political Science and Global Development Studies, Saint Mary's University.  Host: James Bays Connect with us:@AJEPodcasts on Twitter, Instagram, Facebook At Al Jazeera Podcasts, we want to hear from you, our listeners. So, please head to https://www.aljazeera.com/survey and tell us your thoughts about this show and other Al Jazeera podcasts. It only takes a few minutes!