(Washington, DC) -- The vice-chair of the January 6th House committee says the panel is "in discussions" with former Vice President Mike Pence's counsel. Wyoming Republican Liz Cheney told ABC News -- "Everyone who has information" about last year's Capitol riot "has an obligation to step forward." She wouldn't answer a question about whether ex-President Trump will be asked to testify. Pence said this week he would consider testifying if he's asked to. Cheney's interview will air on ABC's This Week program on Sunday.