Former President Donald Trump said he wont debate Vice President Kamala Harris as the candidates hit the campaign trail in key swing states. Boeing is facing a major strike after more than 30,000 machinists overwhelmingly rejected a contract offer, adding to the airline maker's ongoing struggles with safety and financial challenges. President Biden and UK Prime Minister Keir Starmer may decide to give Ukraine long-range weapons when they meet at the White House today. And, California is moving forward with a bill that requires health warning labels on gas stoves, raising concerns about the impact of cooking emissions on air quality.*Want more comprehensive analysis of the most important news of the day, plus a little fun? Subscribe) to the Up First newsletter.*Today's episode of Up First was edited by Don Clyde, Megan Pratz, Neela Bannerjee, Mohamad ElBardicy, and Alice Woelfle.It was produced by Iman Maani, Ziad Buchh, Nia Dumas, Chris Thomas and Ana Perez.We get engineering support from Carleigh Strange and our technical director is Zac Coleman.Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)