Talking Europe hosts Mark Gitenstein, the US ambassador to the EU and a close confidant of President Joe Biden since the 1970s. Gitenstein took up his position in Brussels a year ago, and it proved to be a baptism of fire, with the war in Ukraine starting just a few weeks into his job. We ask him about transatlantic cooperation on Ukraine and the recent tensions between Brussels and Washington in the light of the US Inflation Reduction Act, which the EU fears will put European companies at a competitive disadvantage.