adviser steve bannon refusing to cooperate with the house select committee investigating the january-6th insurrection. bannon's lawyer writing in a letter to the committee and i quote, the executive privileges belong to president trump and we must accept his direction and honor his invocation of executive privilege. the committee responding, quote, we will not allow any witness to defy a lawful subpoena or attempt to run out the clock and we will swiftly consider advancing a criminal contempt of congress referral. former pentagon aide, cash patel, are quote so far engaging with the committee. outfront tonight, former-republican congressman charlie dent. so, congressman, i think that's interesting, right? i mean, there were some who thought all these individuals would completely defy this subpoena. and the fact that you have someone important like cash patel and mark meadows, so fa engaging could be significant. but what about bannon who is central to all of this? how important is it to hear from him? >> i think it's extraordinarily important for the committee too hear from him and i think