Was there coup in South America by the US to over turn their left government?

There was a coup in 1964 from what I understand against the elected government of Brazil. The US was probably involved, but there isn't proof for that sort of thing from what I understand.

The US was probably involved in coups in various Latin American countries, most famously Chile in 1974. Even if the US was involved, it is impossible to know how much was the US and how much it was just supported local forces who would have carried out the coups anyway.

The US Dept of State admits that the Nixon Administration assisted in the Coup against democratically elected President Allende. Allende wanted to nationalized three major American corporations. Under Allende there was massive economic disruption as Allende sought to socialize Chile. Under Pinochet the economy of Chile grew. But isn't proof for that sort of thing.