A panel of 3 federal judges deemed Ohio's congressional map unconstitutional in an unanimous decision on Friday, ordering a revised map be drawn before the 2020 elections, AP reports.

Details: The federal court ruling indicated that district boundaries were gerrymandered after the 2010 Census for Republican gain. While Ohio is currently barred from holding another election in which the current map would be used under the decision, it's likely to be appealed to the Supreme Court.

Go deeper ... Democrats' other 2020 battle: gerrymandering