I don’t disagree that he has a limited repertoire of subjects, but I place the number at four: Spygate, Economics, Politics, and Law Enforcement.
The fact that he spends (IMO) about 70% of his show on Spygate is not a bad thing as you stated, simply because Spygate should be the most important thing at all levels of politics right now.
It is the most profound abuse of power against the citizenry in the history of this country (that we know of)
We all know this would be front page news for the 2nd year running if this was initiated during a republican administration. The outrage would be deafening.
There really is little left to be known. The whole story is out and has been published and broadcast. We know that the NY Times and the Senate Intelligence Committee has received the entire FISA warrant, which means the NY Times knows the truth. I know people who are completely unaware and assume Trump is corrupt to the core with Russia...I kid you not. They truly don't know and have not been exposed to the facts.
The media will never expose to the broader public what has gone on and the House republicans are ineffective in forcing the issue out in the open - mainly because of the press. We know the Senate committee is corrupt so they will be of no help. This was the main reason I wanted the House to stay in Republican hands.
Now, we will get hearings on how Trump stole the election and the meeting in Trump Tower with that Russian lawyer. There will be many democrats stone faced and serious who will state in solemn tones about how the Constitution was breached and there needs to be consequences and public opinion will follow because the press will put this on page 1. I deeply believe this. The truth will be over there in the corner waiting while the lies will be believed.