CAIRO (AP) — The United States and Iran appear to be closing in on a deal to end the war and open the Strait of Hormuz. U.S. and Iranian negotiators on Thursday reached a tentative agreement to extend the ceasefire in the 3-month-old war by 60 days and start a new round of talks on Iran’s nuclear program, according to a U.S. official familiar with the matter. Iran did not immediately confirm any deal. Vice President JD Vance on Thursday evening confirmed there was a tentative agreement, but said it was unclear if President Donald Trump would approve it. The emerging memorandum of understanding came as the fragile ceasefire between the U.S. and Iran appeared to be wavering. The latest flare-up in fighting happened less than a day earlier, when Kuwait intercepted missiles fired from Iran, according to U.S. Central Command. Here’s what we know and don’t know: The war would end In the 12 weeks since the U.S.…