After W, everyone thought it can't get worse with the GOP. The same was thought once the Tea Party surfaced. Now we believe Mr. Trump has hit the bottom. We might be proven wrong a couple of years from now. They always find a way to surprise us, but not for the good.
I think though there is a certain point beyond which independents, GOP leaning suburbanites, and some Obama/Trump voters will absolutely not follow. And a significant chunk of the party embracing a conspiracy theory about a deep state stocked with Satan worshiping pedophiles is very much likely to be that point. This is why I believe the embrace of QAnon means permament minority status for the GOP, for as long as that embrace continues.
