The contentious back-and-forth between President Donald Trump and Pope Leo XIV continued over the weekend, with the president lashing out at the pope's criticisms of the war in Iran.

The president also appeared to take issue with a recent closed-door meeting between the Chicago native and a figure close to former President Barack Obama.

Here's a breakdown of what's going on.

The recent friction began Tuesday, April 7, when Trump threatened to wipe out "a whole civilization" in Iran if the nation's capital didn't make a deal to reopen the Strait of Hormuz.

The threat proved controversial among many, including the pope, who labeled the comment "truly unacceptable."