here's some intro material:

https://www.nytimes.com/2019/01/13/us/politics/bolton-iran-p...

https://en.wikipedia.org/wiki/1953_Iranian_coup_d%27%C3%A9ta...

here's a fun one: https://www.youtube.com/watch?v=U7s5pT3Rris - "McCain Sings "Bomb bomb bomb, bomb bomb Iran"

also check out the proxy wars being fought in Syria, Lebanon, and Yemen between the US and Iran in lieu of all-out ground war.

i was going to start adding links from Trump's presidency but there's just so many...

None of those contain the US calling for the destruction of Iran. Any others?

Those are particular people. Not the US government's actual policy.

Sanctions are a crime against humanity, intended to degrade the state by degrading its people:

https://www.state.gov/iran-sanctions/