So when you cast your vote, be assured that using a Sharpie won’t invalidate your vote. That claim is false. Nicolay says they do provide black felt tip markers at the voting stations.

Illinois election officials told PolitiFact that using Sharpie pens to fill out ballots is allowed. If a ballot is rendered invalid by a voting machine, that ballot is spoiled and the voter may ...

As Election Day voting in Illinois continues, some voters have expressed concerns that the felt-tip or "Sharpie" pens they were given to use by poll workers as writing instruments on paper ballots ...