text:  It's Morning Edition from NPR News. I'm Steve Inskeep. And I'm Sasha Pfeiffer. We still don't have a clear understanding of why a gunman tried to assassinate former President Donald Trump on Saturday. So some people are coming up with their own reasons. The shooting happened in the middle of a presidential campaign that was already saturated with conspiracy theories and threats of political violence. We're joined now by NPR's Lisa Hagan and Odette Youssef. Good morning to both of you.