As Loius Cypher would say, such a fuss....
then-President Donald Trump's plan to hold a campaign rally on Juneteenth in a city known as the site of one of the nation's deadliest white-on-Black mob attacks
White on black mob attacks.
Then we read:
Trump's event was met with protests during a time of nationwide protests
Sounds to me it was black on white protests. Black protesters came after the Trump crowd.