The Arizona Supreme Court decided on Friday to allow nearly 100,000 people who registered to vote over the last 20 years to keep the right to vote a full ballot after a lawsuit stemming from a glitch raised concerns.

The clerical error might have seen the roughly 98,000 Arizonans unable to participate in state legislature, county, school board, and city elections, including ballot measures.

The Arizona Supreme Court ruled Friday that nearly 100,000 residents who may not have fulfilled the state’s proof-of-citizenship requirements can still vote in state and local races this year, quickly resolving how election officials should address a clerical glitch that had left in question the eligibility of those registered voters in the critical battleground state.