House Intelligence Committee Chairman Adam Schiff revealed the whistleblower who filed a complaint about President Trump’s communications with Ukrainian President Volodymyr Zelensky has reached an agreement to testify in front of the committee.

Schiff told ABC’s This Week with George Stephanopoulos that the whistleblower would likely testify “very soon” but added that it hinged upon acting Director of National Intelligence Joseph Maguire clearing “the security clearance process.” Maguire testified in front of Schiff’s committee last Thursday.