Trump has the entire time been running 3rd party.
He needed a party platform and apparatus to run in. Independent to set up primaries etc, is very difficult. He just chose the Republican Party to run in, because we are the most pliable, and he knew it would be a large crowd to allow him an early lead with a populist message against a wide crowd of candidates. Pretty shrewd really.
Wait! You’re implying Trump isn’t actually a Republican? Shame on you! /sarc
Your theory would have been more plausible had you pointed out the exact circumstance that Bernie is finding, near landslide wins at the polls but trailing horribly in delegate count due to superdelegates.
Adding a second challenger to Hillary would only compound the problem.
There ya go. Most folks wised up to this corrupt two party charade.
http://bernardgoldberg.com/trump-is-for-whatever-works-for-trump/