Former Vice President Joe Biden, who was on the campaign trail in Iowa last week, sat down with CNBC’s John Harwood to discuss a range of topics, including trade, health care, taxes and President Donald Trump’s standing among world leaders. Biden has lagged behind Democratic presidential rivals Mayor Pete Buttigieg, and Sens. Elizabeth Warren and Bernie Sanders in recent polls of voters in Iowa, which will hold the first-in-the-nation nominating contest in February. He has consistently led the field in national polling averages. What follows is a lightly edited interview from a pub in rural New Hampton, Iowa.  Learn more about your ad choices. Visit megaphone.fm/adchoices