That's the announcement they made late last week. You can read it here.
And this was BEFORE he criticized John McCain's war record (which he refuses to take back despite being roundly destroyed by his fellow Republicans for saying it)
You can probably guess where my loyalties lie, but I totally disagree with Huffington Post's approach. Yes, Trump is a clown who says terrible things, but he's also leading in the polls for the Republican nomination. Like it or not, that's a political story.