President Donald Trump on Saturday abruptly canceled a planned trip by special envoy Steve Witkoff and the president’s son-in-law Jared Kushner to Pakistan, pulling back from what had been billed just a day earlier as a potential jump-start to fragile Iran talks. “I just cancelled the trip of my representatives going is [to] Islamabad, Pakistan, to meet with the Iranians,” the president wrote on Truth Social. “Too much time wasted on traveling, too much work! Besides which, there is tremendous infighting and confusion within their ‘leadership.’ Nobody knows who on earth is in charge, including them. Also, we have all...