a reminder of the voices we've heard from in the long journey here. >> i encountered an irregular, informal channel of u.s. policy-making with respect to ukraine. >> it is improper for the president of the united states to demand a foreign government investigate a u.s. citizen and a political opponent. >> was there a quid pro quo? the answer is yes. >> he was being involved in a domestic political errand. and we were being involved in national security foreign policy. and those two things had just diverged. >> everyone was in the loop. it was no secret. everyone was informed via e-mail on july 19th, days before the presidential kale. >> such conduct undermines the u.s., exposes our friends, and widens the playing field for autocrats like president putin. our leadership depends on the power of our example and the consistency of our purpose.