The Senate is debating the SAVE Act, which includes a national voter ID requirement, which Democrats have vowed to block. This could leave the GOP short of the 60-vote threshold to advance the bill. However, Senate Majority Leader John Thune insists that Republicans have the votes to circumvent the filibuster. This would be a mistake for the GOP and could allow a future Democratic majority to expand the Supreme Court. Thune argues that voter ID laws are a reasonable election security measure and that 36 states already have laws requiring voters to show identification.