1. Show me proof that Nader cost Gore the White House (and that Perot cost Bush the election, for that matter).
Nader got ~97,000 votes in FL, and Gore lost by ~500. Of course, some of them would have voted for Bush, some would've voted for other third parties, and some would've stayed home. But I'm not sure how you can argue they wouldn't have broken enough to Gore to give him a measly net of 500 or so votes. Nader's primary constituency was white liberals.
Seems at least plausible.
I doubt the election will close enough for Bernie to effect in the EC. At best he'd win Vermont and come in strong only in the dyed in the wool blue states.
In a close election, he'd only have to get a few thousand votes in places like Virginia, Florida, Iowa, or Colorado to tip the election to Walker or Jeb, which would be quite doable for him.
Im starting to think he will run as an independent just so Hillary loses. Just like in 2000, most progressives would rather a republican win than have a 'turd way centrist democrat win' as they say it.
Sanders has already made clear he will not run as an Independent, only in the Democratic primary. So all this speculation about Sanders being the next Nader is hogwash.
If nader promised not to campaign in the swing states and did anyway then Sanders is probably going to run anyway after losing the nomination race.