President Trump unveiled his new granite helipad on Monday, but none of the major TV networks carried the event as tensions between the media and the White House escalated. Trump used a pair of golden scissors to cut the red, white and blue ribbon on the project he dubbed “a work of art” while surrounded by construction workers who built the White House pad, which features the seal of the United States and is estimated to cost $6 million. The White House aired the event on its social media channels, but Marine One, sitting on the helipad behind the president...