U.S. District Judge Lynn Adelman issued his long-awaited decision Tuesday. It invalidates Wisconsin's law.
Wisconsin's law would have required voters to show a state-issued photo ID at the polls. Supporters said it would cut down on voter fraud and boost public confidence in the integrity of the election process.
But Adelman sided with opponents, who said it disproportionately excluded poor and minority voters because they're less likely to have photo IDs or the documents needed to get them.
Wisconsin's law was only in effect for a 2012 primary before a Dane County judge declared it unconstitutional.
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