To the people downvoting, the point is that the headline is misleading. No one is saying that Trump's statements are ok
For example, these previous incidents were not announcements either. It's a BAD thing that he keeps making statements like this, jokes or not, but there's still a difference between announcing a re-election bid and testing the water with "jokes".
Trump jokes about running for a third term in speech to House Republicans
It's not the first time the president has publicly mused about seeking another four years in the White House, which would be barred by the Constitution.
The comments came after he told NBC in March that he was "not joking" about seeking another term in office, after repeatedly publicly musing about the possibility. He also said at the time that despite the constitutional limitations, "there are methods which you could do it."