It won't, and that's the problem with Sanders. He is promising the world to people knowing full well it won't get passed without a truly massive Democratic wave. He will need a Senate supermajority and House majority for this stuff - Padded majorities so a few Democratic dissenters can't scuttle the entire legislation.
Democrats would need to gain 14 seats (plus the 2 caucusing independents) to hold a bare 60-member US Senate supermajority, let alone extra seats for the padding. The last time a party gained that many seats in 1 election was 1958, and that was because of a major recession. Even landslides during the Great Depression didn't produce 14+ seat Senate gains in one election. Things are far too polarized right now to even come close to allowing such a sweep..
While his intentions are pure, he is being incredible naive and misleading the public.
Boom! Democrats don't have the political structure for transformational politics.
