The simplest explanation is that the US in not an ally of Ukraine (or Europe).

Trump knows Russia is helping Iran, but there's nothing he can do to stop it.

Shouldnt he be happy that Iran is taking Russian resources away from the war?

I have seen this topic before and I don't understand what the importance of the issue is. Isn't the USA sharing intelligence with Ukraine? I suppose that Russia sharing information with Iran is what is expected in the situation and what could anyone do to prevent it?

I think it's more like a boss / employee relationship.

No, Putin is sitting on a large pile of "pee tapes" and US dances when it's told to.

Russia does not exactly "help" Iran, they back-stabbed them on several occasions. A more accurate description would be that Russia supports Iran to the extent that it serves its own agenda.

Again, the orange-faced bastard is but a running dog for the Kremlin, and sure it's an open secret on the streets of Kyiv.

A headline like that really doesn't mean anything. The commander-in-chief lives in his little bubble with his dementia and his narcissism. Then people in the military have their own information, most of which is presumably more accurate than the big boss's brain.

Trying to speculate about what Donald believes or knows is an exercise in futility because he's a strong narcissist who's getting dementia. He believes in whatever he believes at that exact moment and it has nothing to do with the past or the future or reality, and if you haven't been around people like that, it's hard to understand, but you have to stop expecting them to have a normal brain. Logic doesn't matter. Facts don't matter. Reason doesn't apply.