Donald Trump March 7, 2018 9:55 am White House Chief Economic Adviser Gary Cohn Resigns President Donald Trump’s top economic adviser, Gary Cohn, resigned Tuesday after butting heads with the president over tariffs. US & World Videos 2:10 Lawmaker hits back at Belichick's criticism of Mass. ‘millionaire's tax' 4:34 Inside the Justice Department's efforts to combat election threats from foreign actors 4:48 Analysis: Comparing what Trump and Harris want to do for housing and health care 24:48 @Issue: What you need to know about the Massachusetts primary 24:27 @Issue: A look back at the DNC and Kamala Harris' nomination