. >>> joining us now from washington, d.c., senior writer at roll call, niels lesniewski, let's discuss the democrats push forward, the expected vote on the impeachment inquiry later this week possibly, and how will this change the scope of the investigation. why is this particularly significant? >> it's good to be back with you. i think it's less necessarily about the scope, than the phase of this investigation, and these proceedings, in the house. as we understand it, this is likely going to lay out the ground rules for conducting some open hearings and some proceedings that have more sunlight as well as maybe the process for more public releases. you know, so far, this has been huddled behind closed doors, depositions, sworn testimony, and such, but all within the confines of a secure facility, deep below the capitol and the capitol visitors center. so what i'm looking for is how the procedures are going to work for open hearings, how the debate time will be divided. whether or not they're going to use outside counsel, or staff to question witnesses, or whether this is going to be he