if you ck the provisional ballots in your state, they will give the reason for uncounted ballots.  Go to your  Registrar of Voters webpage. we had 248 votes thrown out in our little county. they can say those aren't fraudulent votes because they weren't counted.....but someone tried to vote illegally.  we also had a guy go into the elections main office, they couldn't verify his address but they gave him a regular ballot anyway......then he came back in 2 hours later and tried to vote again!  an EIP observer noticed him, pointed that out to the officials, but he was allowed to vote again!  This was at the main office in my county!  talk about them needing training....yes they do.