The whole idea that "Republicans will all just listen as long as this spokesman says so" is yet another Flyover-Country dismissal from people who don't get it--the angry conservatives do not have anyone in government meaningfully representing their views, and that's why they're so angry. Trump was the closest thing lately, but it's about deeply-held personal philosophy, not the cult of personality the media wishes it were. If Trump got on TV and started sounding like Mitt Romney, they'd toss him aside in two seconds.