The F-35 jet fighter helped the U.S. achieve both military air superiority and billions in trade for years. But President Trump’s recent rhetoric has forced some American allies to reconsider their reliance on the aircraft and eye European alternatives like the U.K. and EU’s Eurofighter, France’s Rafale and Sweden’s Gripen. WSJ explores how one of the world’s most expensive weapons is at risk of losing its dominance. Chapters: 0:00 The F-35 program 0:37 What buying an F-35 means 1:02 Trump’s attacks and Europe’s response 2:21 European rival jets 3:33 F-35 challenges ahead News Explainers Some days the high-speed news cycle can bring more questions than answers. WSJ’s news explainers break down the day's biggest stories into bite-size pieces to help you make sense of the news. #Trump #F35 #WSJ