joining me now is edward fishman, an adjunct professor of international and public affairs at columbiat during the obama administration, where he led efforts on economic sanctions in response to russia's aggression in ukraine. also a member of the team handling sanctions on iran. he's the author of a groundbreaking new book, choke points american american power in the age of economic warfare. edward, good to have you on the show. thank you. >> thanks for having. >> me. >> on today would've been a great conversation anyway. but given where we are in the world with ukraine and tariffs and these tariffs that are coming in on canada and mexico in a few days, remarkably important conversation. donald trump has talked a lot about tariffs being the most beautiful word in the english language. covered tariffs for a lot of years. they're a thing. they are sometimes really useful and beautiful and sometimes not useful at all. and damaging. why is he so attached to this? >> so look. >> tariffs historically have been used really for economic reasons in the very early period of american history. yo

. >> edward fishman is an adjunct professor of international and public affairs at columbia university, author of the important book choke points american power in the age of economic warfare. all right, still to come on another hour of velshi the uk and france have agreed to work with ukraine on a ceasefire deal to end russia's war, filling a gap left open by donald trump after what can only be described as a diplomatic disaster in the oval office on friday. plus, as the trump white house moves to control and restrict the white house press pool. i'll talk to jim acosta, longtime white house correspondent who spent years holding trump to account. another hour of velshi starts right now. i begin this hour with donald trump's economy and republicans plans, as they laid out in as they're laid out in a newly passed budget to slash the health care program that serves 1 in 5 americans. they're doing that in order to pay for tax cuts that disproportionately benefit the rich. that bill now heads to the senate, where republicans want to put up a smoke screen to obscure that enormous cost from t