Congressional investigators to question longtime Trump aide

Keith Schiller will meet with the House Intelligence Committee.

ABC News first reported congressional investigators’ interest in Schiller earlier this year.

A former New York City police officer, Schiller has been a fixture at Trump’s side for decades, serving as a body man for the New York developer, and a point of contact for many people trying to get in touch with Trump.

Schiller did not respond to a request for comment on his appearance before congressional investigators.

ABC News' John Santucci contributed to this report.