Why don't far left Democrats like AOC understand that there's not enough Democrat votes in the House to impeach Trump?
If Pelosi were to allow the House to vote, it would likely be voted down. What good would that do the Democrats? It would embarrass them and give the impression that Democrats don't agree that Trump is guilty of crimes. Even if the moderate Democrats did go along impeachment, it wouldn't pass in the Senate; they'd be on record supporting impeachment and might lose in 2020 in moderate districts.
Nancy Pelosi knows what she's doing. Why are the far-left Democrats trying to make it harder for her?