The Supreme Court's conservative majority sounds skeptical of state laws that allow the counting of late-arriving mail ballots, a target of President Donald Trump. The court heard arguments Monday in a case from Mississippi that also could affect voters in 13 other states and the District of Columbia, which have grace periods for ballots cast by mail. An additional 15 states that have more forgiving deadlines for ballots from military and overseas voters also could be impacted. A ruling is expected by late June, early enough to govern the counting of ballots in the 2026 midterm congressional elections. The court challenge is part of Trump's broader attack on most mail balloting.

The U.S. Supreme Court is set to hear arguments over a Mississippi law that allows counting late-arriving mail ballots after Election Day. The high court on Monday will hear from Republicans and Libertarians who sued the state, arguing that federal Election Day statutes envision a single day for casting ballots, which would mean that grace periods for receiving mail ballots aren't allowed. The practice is a frequent target of President Donald Trump and allies who argue it delays vote tallies and leads to suspicions about the results, even though there is no evidence of fraud in late-arriving ballots. Grace periods for all mail ballots are allowed in 14 states, with an additional 15 granting extra time for military and overseas ballots to arrive.

Zohran Mamdani has claimed victory over a wounded, but still perhaps formidable Andrew Cuomo in New York City's Democratic mayoral primary. Now the 33-year-old progressive upstart faces an equally tough task: Defeating Mayor Eric Adams and a Republican opponent, while fending off critics who argue the democratic socialist who thrilled liberal voters is too far to the left. The results, while not yet finalized, have Mamdani in a commanding lead that will be exceedingly difficult for Cuomo to overcome when ballots are redistributed in New York City's ranked choice voting process.