President Donald Trump berated Ukrainian President Volodymyr Zelenskyy for being “disrespectful” Friday in an extraordinary Oval Office meeting, then abruptly called off the signing of a minerals deal that Trump said would have moved Ukraine closer to ending its war with Russia. The astonishing turn of events could scramble affairs in Europe and around the globe. During his visit with Trump, Zelenskyy was expected to sign the deal allowing the U.S. greater access to Ukraine's rare earth minerals and hold a joint news conference, but that plan was scrapped after the heated engagement between the leaders in front of the news media. It's unclear what the blowup could mean for the deal that Trump insisted was essential to repay the U.S. for the more than $180 billion in American aid sent to Kyiv since the start of the war. And it remains to be seen what, if anything, Trump wants Zelenskyy to do to get the deal back on track. The Ukrainian leader was asked to leave the White House by top Trump advisers shortly after Trump shouted at him, showing open disdain.