Two weeks of war in Iran has President Donald Trump increasingly knocked back on his political heels. He has struggled to sell the Iran war at home as oil prices rise, his polling numbers fall and his own electoral coalition shows signs of splintering. In response, Trump has fumed at news coverage and sent mixed signals on goals. On Saturday, he posted that other countries may need to help keep the Strait of Hormuz open, but it was unclear how or when that might happen. Iran says it will keep using the strait as leverage. The turmoil has allowed Democrats to try to seize the moment and unite ahead of the midterm elections.