Trump said Monday that he's building a granite helipad on the White House lawn, insisting that the landing area is needed to accommodate new, more powerful presidential choppers. Confirmation of the project came as construction crews had already begun working on the helipad on the South Lawn, where the president had UFC build a temporary arena for a cage fight celebrating his 80th birthday. He said the project would be privately funded and estimated its cost at up to $6 million. "It's got the seal of the White House on it in granite, in carved granite," Trump told reporters in the Oval Office. "It's really a beautiful thing." Trump said that Sikorsky Aircraft, a subsidiary of defense contracting giant Lockheed Martin, would be paying for the helipad.