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PHOENIXVILLE, Pa. (CBS/AP) — Officials in Chester County say nearly 100 voters were given the wrong ballot in a state legislative race and they’re trying to figure out what to do about it.

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A spokeswoman says the mix-up occurred early Tuesday at a senior center in Phoenixville that’s split between two state House districts.

The county spokeswoman says the first 108 voters were all given ballots for a race that pits incumbent Republican Rep. Becky Corbin against Democratic challenger Danielle Otten.

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The problem is that 93 of those voters should have been given ballots for the race between incumbent Republican Rep. Warren Kampf and Democrat Melissa Shusterman.

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Officials say it’s likely a county judge will be involved in determining what to do about the ballot confusion.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)