Why????
That’s exactly what a “politician” would do....
Trump IS a "politician". Has been for his lifetime. Supports Dems when convenient to him and now is pushing the populist outrage. He's very smart and savvy. But fighting old battles is not one of his strong points. He's got everyone's attention and now simply needs to keep repeating it long enough with good examples to soak into the lib brains. He's already won over conservatives.