You quoted the wrong part in summary, should be this one:
Stein said she rejected the endorsement from Duke.
"A racist troll has 'endorsed' our campaign to draw attention to himself, and certain smear merchants are happy to platform this troll to attack us," Stein wrote in a post on X, formerly Twitter.
"Of course I reject any 'endorsement' from a white supremacist like David Duke, unlike Kamala Harris who can't stop bragging about her endorsement from white supremacist mass murderer Dick Cheney."