President Donald Trump’s birthday weekend is set to take over Washington, D.C., with large crowds and a full slate of programming expected, including a UFC event at the White House. At the same time, eyes will be on the U.S.-Iran conflict amid shifting signals from Trump and Tehran. Meanwhile, investors are watching SpaceX’s potential record-setting IPO, Team USA is preparing for its first World Cup match as the tournament captures worldwide attention and climate officials are monitoring a strengthening El Niño pattern that could shape weather risks in the months ahead. Here are five stories worth following: Make Your Inbox Smarter Sign up for these free email newsletters from U.S. News:Pick Newsletters Quote Driving the News:  “We just made a great settlement of the war with Iran, and we’re going to be subject to finalization of documents, which should get done over the next few days,” President Trump said at the White House on Thursday. SpaceX IPO Could Become a Record-Breaking Market Moment What we’re watching: SpaceX is preparing for what could become the largest …