Courts have dealt setbacks in three states to Republican efforts that critics contend restrict voting rights — blocking a North Carolina law requiring photo identification, loosening a similar measure in Wisconsin and halting strict citizenship requirements in Kansas.

The rulings Friday came as the 2016 election moves into its final phase, with Republican Donald Trump and Democrat Hillary Clinton locked in a high-stakes presidential race and control of the U.S. Senate possibly hanging in the balance. North Carolina is one of about a dozen swing states in the presidential race, while Wisconsin has voted Democratic in recent presidential elections and Kansas has been solidly Republican.

The decisions followed a similar blow earlier this month to what critics said was one of the nation's most restrictive voting laws in Texas. The New Orleans-based U.S. 5th Circuit Court of Appeals said Texas' voter ID law is discriminatory and must be weakened before the November election.