"Today, I will announce the person whom I believe is eminently qualified to sit on the Supreme Court."

Emails Barack Obama. 

The announcement comes at 11 E.T.

Exciting! Exciting to see who it is. I think we know. The linked NYT report says, "Among the finalists are the federal appellate judges Sri Srinivasan, Merrick B. Garland and Paul Watford."

I assume it's the first of those 3, based on the way the media has been reporting on this story. I could be wrong.

I assume the choice has a lot to do with playing a theme in the music of the 2016 election. Whether this person gets to take the Scalia seat on the Court is another matter, an important matter, but subordinate, I think, to the way useful political drama can be stirred up for electoral purposes. That's what I will be following and writing about. I'm sure the nominee will be highly qualified and immensely respectable. It wouldn't work as a political move if he were not.

So: it's exciting to see who the nominee is, but more exciting to see how the nomination/confirmation process interacts with out volatile presidential campaign.

ADDED: As noted by rhhardin in the comments, Obama misused that pesky word that you should never use unless you're absolutely sure it's correct: whom.

UPDATE: CNN is saying (half an hour before the announcement) that it's going to be Garland.