Kevin Morris, a confidant of Hunter Biden, is set to testify in a closed-door interview on Thursday morning as part of the Republican-led impeachment inquiry into President Joe Biden, according to two sources familiar with the interview.

Morris will meet with lawmakers and attorneys on the House Oversight and Judiciary committees for what is expected to be a lengthy day of questioning. The California-based entertainment lawyer will be grilled on a wide range of topics, likely including payments he made to Hunter Biden, purchases of Hunter Biden’s art, and his knowledge of the first son’s plans to defy congressional subpoenas.