I think if you set all of the Fox talking heads up and asked who they preferred....they’d mostly all talk about Jeb Bush. If you asked them why....they’d mostly relate on Trump’s negatives but be marginally able to explain why Jeb. All of this leads to massive lobbying (in the same path as Democrats)...with no clear thinking being observed.
Well if Trump loses that means Jeb would have lost in a real landslide. Like getting Texas’ electoral votes and that’s it. But you will never be able to convince the establishment and the talking heads of that.