WASHINGTON (AP) — The Supreme Court says federal courts have no role to play in policing political districts drawn for partisan gain. The decision could embolden political line-drawing for partisan gain when state lawmakers undertake the next round of redistricting following the 2020 Census.

The justices said by a 5-4 vote Thursday that claims of partisan gerrymandering do not belong in federal court. The court's conservative, Republican-appointed majority says that voters and elected officials should be the arbiters of what is a political dispute.

The court rejected challenges to Republican-drawn congressional districts in North Carolina and a Democratic district in Maryland.