The U.S. Supreme Court’s decision limiting federal judges from issuing nationwide injunctions threatens to upend numerous lawsuits that have led to orders blocking Trump administration policies.

WASHINGTON—The U.S. Supreme Court on Friday limited the scope of orders halting President Trump’s attempt to curtail birthright citizenship, in a decision that narrowed the ability of judges to issue nationwide injunctions against White House policies.

The ruling clears a major hurdle to President Trump’s agenda and could reshape American citizenship, at least temporarily, as lower court challenges proceed.