2012 they were a well oiled machine and the R's looked the other way. 2016 they got a bit complacent and arrogant and didn't prepare as well.
I am not sure where we are now.
I don’t buy into the fraud argument, it will happen like it always does, but I don’t see 20 or 30 house seats swinging on fraud.... The places D fraud is the most pronounced are in places where the district is highly D to begin with...
I am part of my local election board for my district, for organized fraud to occur, basically all 4 or 5 of us working election day would have be in on it. For a stray voter to show up, and claim to be someone they aren’t while possible, our district is pretty well known, someone in it not known by someone working there is low... then they have to work every part of the system with 3 different checks.... Can it happen? Sure, a stray person might get a machine that shouldn’t.... but it would be rare, and for enough of them to reach the machine to throw an election? Almost impossible...
So, to pull it off en masse, you have to have districts where the poll workers are in on it, which leaves you the highly partsan polling places, where 90 or more of the district is D, and no R’s are on the board at all... or vice versa. Which is why fraud is fabled in Philly.. and I am sure some of the urban Pitt districts probably get away with some... but en masse fraud? Tough, to pull off outside those type of districts, not impossible, but not easy. If some bus pulled up to my polling place and started unloading folks everyone of us working the polls would be calling the Constables office before they were even in the door.