I think Donald Trump is the one thing that could scare minorities into actually turning out at Obama levels for Sanders.
I agree. Assuming a ticket of Bernie Sanders and Sherrod Brown vs. Trump/Cruz, I am predicting a Bernie landslide with parts of the South going Democratic for the first time in 35 year: http://www.270towin.com/presidential_map_new/maps/aNVAA.png
Well Sanders is extremley leftist on economic issues, and other than immigration Trump is pretty moderate. Trump is also a MUCH better campaigner. However, Sanders would obviously win CA/NY etc and hispanic vote would be massive against Trump but Trump would dominate among Whites in Arizona, etc much more than most Republicans given some of his populist stances and his anti-mass immigration/pro-securing the border plank.
Also Sanders is to economically leftist and socially liberal to win in southern states like Missouri and theirs nowhere near enough Hispanics to make him competitive in Texas. Sanders would get alot of young leftists and all the kerry states (any Dem would get all the Kerry states just like any Republican will get all the McCain states) but Trump would dominate else where. So Trump would win like 3-4%.
A valid point. I was just considering the high turnout against Trump. You may be right.