Interfering in the internal politics of countries NEVER. Why does the US have a Military Presance in 153 sovereign states and sanctions those where it doesn’t?

While the US slapped Iran with sanctions and is now urging countries to stop buying its oil, the White House insists they are not involved in regime change.This is not the first time Giuliani has committed a diplomatic faux pas while speaking as a private citizen.
Trump’s old ally Rudy seems not to follow the agenda. In May, he was slapped down by State Department spokesperson Heather Nauert after telling a meeting of the Iran Freedom Convention for Democracy and Human Rights in Washington that Trump is “committed” to regime change.

“[Giuliani] speaks for himself and not on behalf of the administration on foreign policy,” Nauert told AP at the time.

via Blunderful Giuliani says US wants to change regime in Iran — RT US News