Revelations have emerged that Iran promised President Joe Biden's administration it would not assassinate former President Donald Trump. Wall Street

The Iranian message was a response to a warning from the US in September, which made it clear that threats against Donald Trump are a critical national security concern and any attack on him would be treated as an act of war.

Iran reportedly gave the White House its promise that it will not attempt to kill Donald Trump just weeks before the Justice Department charged a murder-for-hire man in a scheme to kill the former president.

The Biden administration told Fox News any attempt to harm President-elect Trump would be considered an 'act of war' by Iran.