This is a desperate Hail Mary, and Trump is going to run it back for a touchdown.
The dems realize that Trump is not going to lose the election. They thought they would have destroyed him by now but now realize that it didn't work. They thought Americans would see Trump and begin to hate Trump like they do. They just can't understand why that isn't happening. Everything they try blows up in their faces.
The dems know that impeachment is a huge risk, but they also know they have nothing to lose now. They know it's late in the third quarter and they have no hope of pulling the game out. They need to take their last shot. Nothing to lose.
The dems are going to rush the impeachment through as fast as possible. They might get lucky and it will work. There's a very slim shot at removing Trump and they're going to take it. What else can they do? They're fighting for their lives now - literally in some cases. They want to wrap it up fast though. Before next year. If they get it over with quick enough and lose, they'll have almost a year to let Americans begin to not think about it as much during November, 2020.
What's going to happen is that more Americans are going to support Trump in the end. The dems can't see it because they truly don't understand how anyone could support him.
Bottom line is that the dems are fucked and they know it.
One more thing. They don't want Biden, so this Ukraine investigation is a win/win for them. Biden has been thrown under the bus He's been Bernie'd