The Supreme Court of Missouri on Tuesday struck down key provisions of a law requiring voters to present photo identification at the polling booths.

This 2016 voter ID law made it difficult for disenfranchised groups to vote in the state, as obtaining a valid ID can prove to be a challenge for some individuals. The original law forced citizens who lacked a government ID to sign an affidavit charging them with perjury.

Justice Mary Rhodes Russell opened the opinion for the court by defending disadvantaged groups, specifically Missouri’s transgender citizens. The opinion dismissed the affidavit portion of the 2016 law on the grounds of its discriminatory and misleading outcomes: “Because the affidavit requirement of sections 115.427.2(1) and 115.427.3 is misleading and contradictory, the circuit court’s judgment declaring the affidavit requirement unconstitutional is affirmed.”