President Trump on Friday refused to authorize the release of a Democratic rebuttal to a controversial Republican memo alleging that the FBI and Department of Justice abused their power to conduct surveillance of former Trump campaign adviser Carter Page. In a letter to House Intelligence Committee Chairman Devin Nunes, R-Calif., the White House said it could not release the Democrats' memo because the Justice Department "has identified portions...which it believes would create especially significant concerns for the national security and law enforcement interests."