Because Ralph Nader won the Democrat office?
Nader’s a joke - and so is Mittens so I guess the analogy works there.
Because the Left is still butthurt that Ralph Nader ran in 2000 and siphoned votes from Al Gore Junior.
Ralphie didn’t even get as many votes (2,883,443) as Ross Pee-rot (19,743,821 and 8,085,402).
Interesting side note, the same Green Party ticket (president-veep) ran in 1996 (and only got 685,435 votes)
https://uselectionatlas.org/RESULTS/