Trump was taken what a regular Republican does and fuck it up royally. He's done nothing that another Republican wouldn't have done in his place. Seriously Dubya's presidency was a clown car full of corruption and deregulation. The only real difference is that Bush and friends understood subtlety so some of their bullshit flew under the radar.
Its possible that Trump would be worse than Bush if he was competent but he isn't. The net result is that Bush was a worse president because he was more competent at being evil.
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Nixon says hi.
And what did the GOP learn from that? We need more lawyers like Barr.