First, this slipped into the news cycle re Hunter Biden & Romania (yes, Romania).
This is a message to the House - "If you pass it, it's DOA over here".
We'll soon (probably still weeks out) get a glimpse into what really happened in 2016.
"Operation Ukraine" was likely a desperate attempt to discredit everything that is coming out.
It also likely means impeachment is DOA, though it will take several more weeks to play out its slow demise.