The match that lit the Ukraine fire was the mention by Trump of Crowdstrike, the sole source of the finding that Russia hacked the DNC server. No Russia hack and the entire house of cards collapses.
I guess this has something to do with Trump and Wikileaks
Wash post reporting that the Dems need this for impeachment
wash post
BREAKING: The statement came in arguments before appeals court judges in Washington, D.C., over Congresss request to have secret grand jury evidence from former special counsel Robert S. Mueller IIIs report released urgently for its impeachment inquiry.
They don’t want to know who and how the DNC was hacked. That kills everything. It may even implicate some very powerful people in murder.
That, and they are likely worried about DOJ investigating them.