Trump Tower, President Donald Trump’s midtown Manhattan skyscraper, caught on fire on Saturday. It is, as of yet, unclear how or why flames are engulfing the side of the 58-story building. But video posted to Twitter shows New Yorkers gathered to see flame shoot out one end of the tower, which just as quickly drew a strong New York Fire Department response. At one point, flaming debris appeared to explode out of windows and fall to the ground.