President Donald Trump describes the war with Iran as a success, even as his message about the conflict keeps shifting. Trump says the United States is winning even as he sends more troops to the Middle East. He blames other countries for not helping the American effort, then says he doesn't need their assistance. He's delayed deadlines for Iran to reopen the Strait of Hormuz. And he's sent mixed signals about how much the closure of the vital waterway matters. Former officials and analysts say his zigzagging is creating confusion. For Trump, his approach is bumping up against the unpredictability of war.