It's not a checkmate. Damn near every president in this country has been a flat out racist or accused of being a racist. To call Trump the first makes it way too easy to deflect.
The right will go, "See, the left will just call anything racist in relation to Trump.
"
The left will go, "See, this is why Biden is such a flawed candidate. We could have had a real progressive if it weren't for the establishment.
"
Woke Twitter will go, "But you were hugged up with known segregationists. And you authored the 94 Crime Bill. And you told us we weren't black if we didn't vote for you. You're a racist too. fukk you, Joe Biden.
"
So now he's buried the lede and his point is delegitimized because all anybody heard was yet another verbal gaffe.