IMHO, the Clintons and the Democratic Party have helped change the meaning of ‘politician’ in the colloquial vocabulary of America. America now identifies a ‘politician’ as either a two-faced liar or an extreme adversarial.
Sure; Bush II with his Patriot Act helped change that definition as well. Rather than securing us from terrorists, it is used to bully the American public (while terrorists still have unfettered access to kill Americans here).
Americans now regard their political caste in the same manner as the colonists viewed George III 200+ years ago. I don’t think Hillary understands that when she mockingly points out that Republican politicians are abandoning Trump she is actually reinforcing the idea that he is an independent candidate outside of that political caste (and more people like that).