“ Cahaly notes that this phenomenon showed up as long ago as the 1980s, in the so-called Bradley effect, when the African-American mayor of Los Angeles, Tom Bradley...”
The Bradley effect has been tested time and time again and since its discovery in California, it remains a constant in all presidential election polls since 1984 but is never corrected in the final results, and that is why Trafalgar Group’s polls should be the only polls deemed accurate.
My take away. Could lose Pennsylvania due to voter fraud.