What Scott Walker's Battle Against Unions Really means

Here is an article from Mother Jones which examines why Scott Walker attacked the public sector unions in Wisconsin, the author from this article says that he was not fighting politics on a primary level (ideology), but that he was playing the game on a secondary level which attacked the donors of the opposing party.  A super interesting read about the game of politics and the Republican party: What the Union Fight is Really About: Defunding the Left