County Clerk David Orr says because the date of the primary was moved up, some of the usual judges aren't able to help out. Others are concerned about the weather.
He said he needs about 1,200 judges to fully staff precincts in the suburbs.
There are classes this weekend to train people for the job, which pays $150.
"Given that this is a bigger election, people are saying that we're going to have a big turnout. And if that's the case, it's really nice if we can have enough judges cause they can make the lines move more quickly," said Orr.
Anyone interested in being an election judge should call 312-603-0970.