There was a movement before Trump. It was called the tea party. Trump is seizing an opportunity to lead a movement that was already started and has fairly recently become rudderless and listing ... I will withhold judgment on his sincerity to its goals. He may be entirely sincere for all I know. I hope so.
The Teaparty has abandoned its goals. I am an original member but with the leaders hornswagling their members to support Cruz, I have left both clubs I belonged to. The Teaparty also made a lot of poor choices like Cruz and Rubio and I gave them my support. No longer. The minute they hit Washington they become just like all the rest.....dreaming of lifetime government positions and the great big gravy train.