Hope Hicks, former White House communications director and confidant to Donald Trump, has agreed to testify to a closed session of the House Judiciary Committee, according to its chairman Congressman Jerry Nadler.
The president had claimed executive privilege in a bid to prevent Hicks from testifying. She had turned over documents related to the presidential campaign.
Nadler said Hicks will answer questions about whether Team Trump tried to thwart special counsel Robert Mueller's probe into Russian meddling in the 2016 election.
Hicks, who now has a top PR job at Fox, will be the first top Trump staffer to answer questions in the obstruction of justice probe.
She will testify June 19. A transcript will be made availabe.