While the media devotes much hand-wringing to Republican vulnerability in this November’s election because of abortion, virtually no attention is paid to what’s been that party’s primary electoral strategy since the 1960s: preventing citizens from voting. This year, it appears, voter purges, signature challenges, and election worker intimidation are how the GOP thinks they can overcome America’s distaste for their support of criminalized abortion. In the run-up to New Jersey’s 1981 gubernatorial election, Republicans in that state put together what they called the National Ballot Security Task…