President Trump's new acting director of national intelligence, Richard Grenell, has already made major changes at the agency, including ousting the No. 2 official. Former acting Director of National Intelligence Joseph Maguire and his deputy, Andrew Hallman, resigned on Friday. According to The New York Times, Grenell told Hallman, who has worked for national intelligence and the CIA for three decades, that his service was no longer needed. Senate Intelligence Committee Chairman Richard Burr (R-N.C.) praised both Maguire and Hallman for their service after their resignations were announced. “For nearly four decades, Joe Maguire has dedicated his career to securing...