“Jill Stein is a useful idiot for Russia. After parroting Kremlin talking points and being propped up by bad actors in 2016 she’s at it again,” DNC spokesman Matt Corridoni said in a statement to The Bulwark. “Jill Stein won’t become president, but her spoiler candidacy—that both the GOP and Putin have previously shown interest in—can help decide who wins. A vote for Stein is a vote for Trump.”
I doubt anyone dumb enough to vote for Stein are Harris voters anyway. So now than likely a vote for Stein will be one taken for Trump. So Trump and Putin can waste all the money they want on her campaign.
They’re probably trying to scoop up the Republican voters that are disillusioned with Trump and prevent them from going to Harris. It’s actually a decent strategy in that light.