Last weekend, US forces 'compromised to a permanent end', Abu Bakr al-Baghdadi, the former leader of Isis.
However, less than a week later, the terrorist group apparently has a new leader and Donald Trump knows exactly who it is.
That's exactly what the president tweeted on Friday evening, in a completely cryptic tweet which no one could decipher.
Trump's insistence that the leader's name is a mystery is quite baffling as Abu Ibrahim al-Hashimi al-Qurashi was named as the new Isis leader on Thursday.
Not much is known about the new leader yet but Trump seems pretty confident that he knows all there is to know about the man in question.
However, his tweet, which he probably intended to be quite serious, took on a new life of its own, with many people trying to guess who the new leader of Isis is.
As you can imagine, the guesses were not that serious.
Others were quick to point out that it was only a few days ago that Trump claimed that Isis was finished after Baghdadi's death, so how are they now alive and kicking again?