This implies Trumps has the slightest idea what he is doing, though, or has what the man on the Clapham Omnibus might think of as strategies. I am not convinced, having paid attention to his maunderings, that he does.
All the garbage about the reflecting pool being vandalised and having an I forget how long he said it was gash ripped in its liner, for example, was clearly off-the-wall at the very least. He initially said it was painted. Ripping a gash in paint would be futile, if it could even be done. And before you ask, Trump repeatedly said it was being painted "American Flag Blue" (which can be seen, now the pool has been drained yet again, to have faded to grey/gray already, less than a month after all the hoofaraw about it being all-new and all-American before the algae started to bloom, which Trump also attributed to vandals) before he started talking about it having a liner. I think he might mean that the paint constitutes a liner, but he dunnarf sound confused. Also paranoid. The paint started to peel off, and anyone who looked at it floating up to the surface was liable to arrest for having caused it to surface; mad.
As for your wondering what the context is in which he says things, again having listened to the actual speeches rather than reading the sanitised transcripts in the media, it is my opinion that he says whatever pops into his head at any given moment, and there is no particular context apart from, "Oh look, a microphone for me to talk into. They gave me one that didn't work once, and as for teleprompts, well, I gave up on those because nobody can make them work, even my uncle who was a Harvard and Yale professor for seventy years couldn't make them work, and he invented lasers and told me I was the most intelligent man he'd ever met"..... (This is itself a great deal more coherent than he often is, but I can't imitate stream-of-semi-consciousness ramblings all that well.)
What is behind HIM is a further question; I think that means who is or are his puppet-master(s). I have a feeling Putin may have been for quite a while, for example, and I am also reasonably sure the people responsible for producing Project 2025 (which Trump asserted he knew nothing about; maybe that was true) may be pulling his strings to get their policies implemented when he notices them.