I am sensing sarcasm, so I just want to point to the 2014 primary turnout numbers. Less than 18% [1] of total eligible voters cast a ballot in the 2014 primary elections. When you have that much apathy, it suddenly becomes a lot easier to sway elections with a few million dollars.

[1] - http://humanevents.com/2014/10/08/republican-2014-primary-tu...