He could also be a Russian Troll. That fits pretty well with the Russian anti-Democratic Party theme.

"You can vote for Trump, or support Bernie. As long as you don't vote for Hillary because we don't want competent US governance."

Remember, not electing Hillary played right into Putin's scheme for weakening US influence in the world. Considering all the things we have learned in the last few months, it looks like a lot of American's actions helped Putin in his quest to strengthen his Malignant Kleptocracy.