Bernie Sanders provides clear-eyed reason why he urges some Americans to run as independents.

[elocs]

16. Here in WI in '16, many on the Left, Democrats & Independents were so sure Hillary would win

that they chose to vote for Jill Stein of the Green Party who received more votes here than Trump's margin of victory. Plus, there were BoBs (Bernie or Bust) who voted for Trump (up to 13% of them as reported by NPR) to teach the Democratic Party a lesson for not nominating Bernie.
In my over 50 years of voting I have 1 hard and fast rule--I only vote for Democrats. The only way I would ever vote for Bernie is if he were the Democratic candidate here and then I would expect the Republican candidate to win.

Sanders is NOT a Democrat and so it is NOT appropriate to be reading a post here at DU of him encouraging people NOT to vote for Democratic candidates even if they are not Republicans.