KEY POINTS
President Donald Trump speaks before signing an executive order in the Oval Office of the White House in Washington, D.C., U.S., on Monday, Jan. 30, 2017.

This story was co-published with The New York Times.

At a private meeting in September, congressional aides asked Rebeckah Adcock, a top official at the Department of Agriculture, to reveal the identities of the people serving on the deregulation team she leads at the agency.