South Carolina Representative Garry R. Smith (R-Simpsonville) has introduced HB 3110. It says that no one may vote in a party primary unless the person signs an affidavit saying he or she is a member of the party. Once a voter had signed such an affidavit, the voter would be deemed to continue to be a member of the same party, until he or she signed another form retracting it. Voters could not switch within 30 days of a primary.
The bill does not include presidential primaries, and if passed, would go into effect in time for the congressional primary of June 2012. Currently South Carolina has open primaries. Any voter, on primary day, can decide which party’s primary ballot to use. The Greenville County Republican Party has a pending lawsuit in U.S. District Court, in which the party seeks to implement such a procedure even in the absence of any state law on the subject. That case is The Greenville County Republican Party Executive Committee v State of South Carolina, 6:10-cv-1407.