Maybe they didn't feel betrayed because they truly didn't feel betrayed. But that of course would mean acknowledging that they have minds of their own. And if you deny that, what does that say about any of our politicians, including the one way at the top?
History is full of populists who burst onto the scene with all the sound and fury they can muster for their one and only issue, and then end up disappearing without so much as a ripple on the surface. You want to hitch your wagon to the flavor of the month, be my guest, but let's not pretend that carrying one district is a mandate to speak for the nation.