Ummmm... isn't the announcement of an announcement the logical equivalent of the announcement itself?
This is part of the reason why I'm so disgusted with modern politics: it's become too much about pomp and pageantry and public bravura, and so very little about substance.
It's like this: the President of the United States is a position of service. Those who fully comprehend that won't play games with even candidacy for it. A real leader would simply say "Yes I'm a candidate", without being a protracted prima donna about the matter.