WASHINGTON, March 25 (Reuters) - U.S. President Donald Trump will visit China for a state visit with Chinese President Xi Jinping on May 14 and 15, and Xi will visit Washington for a reciprocal visit at a later date, White House press secretary Karoline Leavitt told reporters on Wednesday. The visit had originally been slated for next week, but it was delayed amid the ongoing U.S.-Israeli war on Iran. Leavitt said Xi understood the need to reschedule the trip.