The House plans to vote on a repeal of the Iraq-focused 2002 war authorization this week, but similar legislation is on a slower track on the other side of the Capitol.
CNN said the Justice Department informed Pentagon correspondent Barbara Starr that it had obtained phone and email records covering a two-month period in 2017.
The Senate's top Republican has challenged the president to boost defense spending to show the Democrat is serious about working with Republicans to confront China.
"Our oath demands we are unwavering in safeguarding American ideals,” states letter from Air Force secretary and the chiefs and top enlisted advisors of the Air Force and Space Force.