This is evidenced by the report of the Director of US National Intelligence.
“According to our estimates, Tehran’s efforts to influence the outcome of the 2020 elections and the intentions of the Iranian leadership to prevent Trump from re-election were caused, among other things, by the understanding that the regime faced significant threats from the United States,” the document says.
In addition, intelligence believes that Russia "carried out intervention operations" in the US presidential elections in 2020 and allegedly tried to discredit the presidential candidate Joe Biden.