Virginia on Monday asked the U.S. Supreme Court to intervene to allow the state to remove roughly 1,600 voters from its rolls that it believes are noncitizens.

The request comes after a federal appeals court on Sunday unanimously upheld a federal judge’s order restoring the registrations of those 1,600 voters, whom the judge said were illegally purged under an executive order by the state’s Republican governor.

Gov. Glenn Youngkin says he ordered the daily removals in an effort to keep noncitizens from voting. But U.S. District Judge Patricia Giles ruled late last week that Youngkin’s program was illegal under federal law because it systematically purged voters during a 90-day “quiet period” ahead of the November election.