There's that infamous Lee Atwater quote (former RNC chariman who helped Bush I and Reagan win on their 'no taxes, cut social services' rhetoric) that I won't quote here but is foundational to modern conservative dogwhistle politics: https://www.thenation.com/article/archive/exclusive-lee-atwa...

We live downstream of that where people often parrot the same dogwhistles uncritically 40 years later without understanding how deeply racist they are.