US Vice-President JD Vance has taken issue with Pope Leo, after his public sparring with Donald Trump about the war in Iran.
A heckler in the crowd at a Turning Point USA event in Georgia shouted as Vance chided the pontiff to "be careful when he talks about matters of theology".
Pope Leo - the first American Pope - has repeatedly condemned the war in Iran, saying it has led to "absurd and inhuman violence".
The pope said on Monday that he has "no fear" of the Trump administration or "speaking out loudly of the message of the Gospel, which is what I believe I am here to do".
