No I don't know that. There isn't any creditable source with this information. Given his extreme stance on Jews, immigration, and White Supremacy, it's difficult to believe he ever supported a black man as President.
But now that Republican promotion of white supremacy/Naziism has completely backfired, I notice how desperately right wingers are trying to cover their tracks and blame these right wingers as Soros plants and false flags.
You people are such liars. Every time you're caught being the slimes you are, you try to claim you didn't do it.
Deplorables.
You are the liar. Trump has been denouncing Duke for years. Trump left the Reform Party because of "undesirables" joining, naming David Duke and Pat Buchanan by name! He followed Jesse Jackson out the door. Even CNN, back in 2016 admitted Trump was "crystal clear" in his denouncement of Duke:
"David Duke is a bad person, who I disavowed on numerous occasions over the years," Trump said on MSNBC's "Morning Joe."
"I disavowed him. I disavowed the KKK," Trump added. "Do you want me to do it again for the 12th time? I disavowed him in the past, I disavow him now."
You know this already because it has been pointed out to you, specifically. You still repeat your lies.
Middle America and Flyover States are sick of this B.S. Normal Americans are sick of the shrill cries of, "Racist! Homophobe! Xenophobe!" The last group shut down for being white supremacist Nazis weren't even white, FFS!