Trump communicated to the House — “If you are going to impeach me, impeach me fast, so we can have a fair trial in the Senate,” with the goal of getting acquitted by the time of the Super Bowl and/or the SOTU, because audience and ratings. This is all that counts for Trump.
In the Q & A, the WH tries to subjugate the Congress by a facile, ahistorical argument regarding parliamentary power. Ultimately it is still about unitary power and validating the use of foreign influence to abuse power. Adam Schiff questions whether reframing corruption as “policy” (or not a crime) makes it unimpeachable. So many ways to rationalize the solicitation of (a thing of) value for an official act as a matter of personal gain and as a violation of public trust.
Even as not having witnesses and documents affirms the Cover-Up resulting from a rigged trial by a GOP senate flouting the rule of law. Cowardly despotism moves forward.