The only things that drive down the rate of rejection are lowering the standards required for acceptance and either providing assistance to voters or having the mail in or absentee ballot forms be filled in by someone who knows exactly what they are doing.
All of those factors were probably being used, but the last two can be evidence of illegal activity.
Also know as throwing dust in the air.
It's what you do when you don't have much to back up your premise.
Pollak's a master.