If Trump really said Bannon was responsible for Moore losing he’s delusional. Moore lost due to massive voter fraud and having no help from McConnell and the RINOs. Trump refuses to admit it, but he’s also not as popular in Alabama as he was when he was elected. Exit polls showed he has a 47% favorable rating in the state and I believe it. If Trump was still in the high 70s in the state you can bet your bottom dollar that he would have delivered Alabama to Moore.
Moore lost because he was a terrible candidate and Bannon was backing him to get the nomination - he was the only candidate who would have had any chance of losing and he did. He was the worst candidate to nominate as far as electability. A Republican losing a race in Alabama is no small accomplishment. President Trump is not delusional about this - he is absolutely spot on. Moore, like Bannon, was all about himself and vanity politics - not any particular good agenda.
“Exit polls showed he has a 47% favorable rating in the state and I believe it.” It was probably was correct for that electorate. 90% of the Democrats who had voted in 2016 showed up and only 50% of the Republicans showed up - they were not inspired by a candidate like Roy Moore to show up and vote. The fact Trump would have a 47% favorable rating among the electorate sounds about right - it was heavily Democrat. Again, no small accomplishment for Bannon and Moore - to get an electorate in Alabama that is mostly leftist to show up the polls and the Republicans uninspired and staying home the point the much smaller pool of Dem voters could overtake them.