Can’t say about SC but here in Texas Cornyn keeps getting elected because the GOP leadership will not let his sorry ass go. Also McCain/Feingold as described by Rush was “the incumbent protection act”. They build huge war chests and the RNC, NRCC and NRSC have huge war chests to contribute to those that play ball with them. It’s a huge scam and we, the voters have no choice. Either vote democrat or vote for who they allow us to vote for.
Trump broke that mold and that’s why they hate him so much. He scares the s h I t out of the establishment because they lost control.