The U.S. Supreme Court issued rulings Monday resolving two state disputes over gerrymandering but leaving open questions about how states draw political districts. The justices unanimously ruled against Wisconsin Democrats who challenged legislative districts that gave Republicans a huge edge in the state legislature. The high court said the plaintiffs in that case failed to prove they had the right to sue on a statewide basis rather than challenge individual districts.

The Supreme Court on Thursday ruled 7-2 that Minnesota needs a less restrictive dress code for voters at the polls. Though many states have rules about polling place attire, Minnesota’s law banned clothing that advertised candidates, parties, and issues. For example, a National Rifle Association T-shirt could violate the rule if a gun control measure were on the ballot, according to a lawyer who argued the case for the state. Chief Justice John Roberts wrote that Minnesota’s intentions were good, but the law was too broad and risked violating voters’ freedom of speech. 

The Supreme Court validated Ohio’s voter roll purge policy on Monday, upholding the state’s right to remove registered voters who haven’t cast ballots in a while. In a 5-4 decision split along ideological lines, the justices ruled the practice does not violate a federal law intended to encourage voter participation. Republicans in Ohio and other states argued the policy would preserve voter registry integrity and prevent fraud.

The Supreme Court sided with businesses in a ruling issued Monday over employment disputes. The divided justices ruled 5-4 that businesses can require workers to use an arbitration process to pursue complaints individually, rather than banding together to file lawsuits over pay and workplace conditions. The ruling does not affect employees covered by labor unions.

The U.S. Supreme Court heard oral arguments Wednesday concerning President Donald Trump’s executive order to block travel from terror-prone countries. The case will determine whether the U.S. government can keep people out of the country indefinitely based on nationality. Opponents contend the ban—which blocks travel from seven countries, five of which have majority Muslim populations—is designed to exclude Muslims from the United States.

WASHINGTON—The Supreme Court on Monday declined to take up an appeal concerning the Deferred Action for Childhood Arrivals (DACA) program, ordering the Trump administration to take its case to the federal appeals court first. President Donald Trump in September announced plans to end DACA after March 5. Although the president has the authority to shutter the program, two federal district courts put the order on hold, ruling the White House ignored some procedures under federal law and violated the equal protection rights given to DACA recipients. Rather than appeal to the 9th U.S.

Two Republican lawmakers from Pennsylvania filed an emergency appeal with the U.S. Supreme Court on Wednesday night to block a new congressional district map drawn by the state’s highest court. The new map, issued after the state Supreme Court ruled the previous one unconstitutional, likely would give Democrats an advantage in this year’s elections for the U.S. House of Representatives. Justice Samuel Alito, who handles emergency requests from Pennsylvania and other states under the jurisdiction of the 3rd U.S.