Right because some random racist dude who lives in Ottawa and shows up with a confederate flag isn't a part of the convoy.
Now do the organizers.
The 3 Percenters aren't a racist/nazi/white supremacist group so the Graham Challenge remains unclaimed.
Just two examples from the ADL:
Clarence, Illinois, July 2018: Michael Hari and several other members of a small militia group dubbed the "White Rabbit Three Percent Illinois Patriot Freedom Fighters Militia" were arrested on a variety of charges in connection to the bombing of a mosque in Minnesota in August 2017, and the failed bombing of an abortion clinic in Illinois in November 2017.
Garden City, Kansas, October 2016: Three members of a tiny Kansas militia group dubbed The Crusaders, an offshoot of the Kansas III% Security Force militia, were arrested in connection with a plot to use truck bombs to destroy an apartment complex housing Muslim immigrants from Somalia.