Guantanamo Bay, January 2002. AFP PHOTO / US NAVY / Shane T. McCOY ORG XMIT: GTB06

On Monday, we got the unsurprising news that President Obama will run for re-election.

But how could we be sure?

I suppose we could look for evidence at his actual announcement and associated video.

Or we could read the obvious news as the White House announced that Khalid Sheikh Mohammed, and other 9/11 defendants, will be tried in military tribunals at Guantanamo Bay. This is quite the reversal over the President’s commitment to try him in civil court—and to close Guantanamo.

That abrupt change in position signals the opening of the presidential-selection season better than most anything else.

More on the story below.