There are unprecedented ruminations and rumblings in America during this Year of the People: http://www.breitbart.com/2016-presidential-race/2016/04/16/exclusive-leading-progressive-activist-considers-potential-emergence-third-party-right-left-populist-coalition-dustin-stocktonexclusive-leading-progressive-activist-consider/
Again, I have written about this for the ABC's Drum twice: http://www.abc.net.au/news/2016-02-11/mccann-american-voters-have-gone-rogue/7158840 and http://www.abc.net.au/news/2016-03-18/mccann-who-is-to-blame-for-donald-trump/7256858