Regarding concentration of corporate power and economics, Nick Hanauer was on the 1A yesterday [1] and had relevant commentary. He also brought up problems with inequality a few years ago [2] and last month [3].

[1] http://the1a.org/shows/2017-08-30/zillionaire-to-other-zilli...

[2] http://www.politico.com/magazine/story/2014/06/the-pitchfork...

[3] http://www.politico.com/magazine/story/2017/07/18/to-my-fell...