What does the Eric Cantor primary loss mean for 2016?

[Vosem]

It means nothing. Eric Cantor's loss had nothing to do with immigration reform, whose chances of passing were zero before the loss and remain so. Unless he runs for another office or becomes a prominent talking-head, within a few years Cantor will be forgotten. While a remarkable upset, in terms of effect on anything else it was a big nothingburger.