I would suggest you goggle "Republicans’“Southern Strategy” under Nixon".<quoted text>The GOP doesn't have blatant organized anti-black racism on public record or the national archives.
It's the culture..
Nixon's political strategist Kevin Phillips said, "Republicans would be shortsighted if they weakened enforcement of the Voting Rights Act. The more Negroes who register as Democrats in the South, the sooner the Negrophobe whites will quit the Democrats and become Republicans. That's where the votes are. Without that prodding from the blacks, the whites will backslide into their old comfortable arrangement with the local Democrats. "
THAT is public record.
In 2005, Republican National Committee chairman Ken Mehlman formally apologized to the NAACP for ignoring the black vote and exploiting racial conflicts.