testimony that democrats believe will fuel the impeachment push. >> it's notable those two people we'll hear from today, michael duffy and laura cooper are going against what the directive was and they're voluntarily apparently showing up to testify. thanks, manu. the ukraine story is moving quickly. what is clear is that in little more than a month, sworn testimony is now corroborated the core of that whistle-blower's complaint. let's take a moment to take stock. august 12th, a whistle-blower filed a complaint with the intelligence community arguing that president trump abused his power by demanding that ukraine investigate his political rival while withholding military aid. and that the president's personal lawyer was in effect taking over u.s. policy towards ukraine. after that complaint was released, text messages came out revealing conversations between top ukraine diplomat bill taylor and eu ambassador gordon