I think it was stirlingsays who said that Trump 2.0 is not the Trump 1.0 that people voted for in his first term.
Trump now suggesting if Europe doesn't assist, NATO will be at risk. (as if the Ukraine situation didn't expose it as a spent force) The threat from the USA is clearly a potential oil grab
The point has been made by commentators that Trump's administration has stopped mass deportations as a policy because, 'it doesn't play well with independents'.
But he starts a war of choice that's unpopular with the majority other than the Maga diehards (which isn't the majority who vote Republican because most vote for the least worst option).....and more importantly goes against how he campaigned since 2015.
America doesn't have the quality of troops in enough numbers it had following 9/11....it just doesn't. It has great tech but standards have fallen over all, along with the passing of the generations and while its top units are the same quality it's allowed social liberalism within its rank and file.
To invade and overthrow a country like Iran.....I'd estimate you'd need at least, 200,000 troops and all the air support and equipment.....probably closer to 300,000 really. The war would attract all the western haters from around the region (a lot of people) who would join just to kill an American, even if that meant dying themselves. God knows how many would die on both sides.
Then you have what happens after....How do you keep the new friendly regime in power....it means you'd have to stay and protect them.
So, it would be insane to invade Iran....lives, cost and long term effectiveness......but then again, it wasn't too bright for America to have started the war.
Trump wants anti Iranian outside and anti Mullah forces inside Iran to do the work for him........It's possible but not likely as the anti Israeli sentiment in the region is so high even against enemies of the regime. Instead like many said beforehand, what's more likely is that you're going to get a more radical Iranian regime.
What would be scary is if Israel wanted to then 'salt' the earth, as Rome did to Carthage, to end the discussion once and for all.