Bill Bar, a vocal critic of the ex-president's false claims of election fraud, is in active discussions to sit for a formal interview with the House committee investigating the January 6 Capitol riot.
According to an unnamed source, Barr is inclined to cooperate with the committee.
The committee hasn't decided whether to request Barr's presence at the hearings.
Bennie Thompson told CBS in January that the committee had already taken part in more informal conversations with Barr.
Barr broke ranks with Trump after he lied about voter fraud in the 2020 election.
The committee chairman says that the ex-attorney general has talked to the panel.