And exactly how do you see that happening unless the machine manipulation, ballot harvesting, and out right fraud is totally stopped? The progressives will do exactly the same thing even if more than 10% of dems defect. And no one will ever know, because the media has learned lessons from this episode as well.
I think the fraud accounts for 3-5%, enough to swing most elections as they tend to be very close. 10% would be difficult and would stick out like a sore thumb.