The proven past standard operating procedure is whatever the Democrats point the finger of evil at Republicans, this is precisely the evil thing they are already doing.
Democrats are so intensely pathological it is difficult to understand their motivation with any real clarity.
We know that democrats consistently accuse republicans of the very crimes they themselves are committing. Whether this is because they are distracting from the truth or because they are not self-aware enough to see their own perfidy is unclear. In the case of Pelosi, it is almost certainly the latter. In the case of Schumer, it is much more likely the former.
What we know with certainty is liberalism is a mental illness.