The death of birtherism
It is not just that it did not work at the Presidential level. Birtherism is an embarrassment that drove people from the party. America is a nation weak enough to be racist, but strong enough to be ashamed of it. Thus the need for dog whistle politics. A candidate's racism must carry plausible denialbility.
One thing about the right wing, they can turn on a dime, so we won't hear anything about birtherism anymore, which will be a relief.
Conservatism has always been about strategic hate management, from Rum Romenism and Rebellion, to McCarthyism, to Jim Crow, it has always been about hate management.
I suspect they will double down on the war on women and gays, but use more dog whistles.