President Donald Trump has sparked a diplomatic crisis with Italy after insulting Italian Prime Minister Giorgia Meloni on television.

Donald Trump’s one-time close ally, Italian Prime Minister Giorgia Meloni, unleashed a furious tirade against the president over his “completely made-up” statements about her.

Ms Meloni said she was "astonished" by his remarks, which were "completely made up".

The Iran war has posed a political challenge for Trump, who campaigned on a promise not to start any new wars and whose approval rating fell amid criticism of the war, as well as its economic consequences,

The guns may have fallen silent, but the political battle over the U.S.-Iran deal is only heating up.