Donald Trump’s campaign nixed access for a pool reporter to a New Hampshire rally on Sunday—even though he was there to represent five major news networks.NBC News correspondent Vaughn Hillyard, who has long covered Trump, told his employers on Sunday that the GOP front-runner’s campaign had suddenly objected to his presence.“Your pooler was told that if he was the designated pooler by NBC News that the pool would be cut off for the day,” Hillyard wrote in an email obtained by The New York Times