Yes, Sunny Obama. Which is the best name. (Uh oh, is Bo already living in the shadow of the new kid??)

The White House says:

Sunny was born in Michigan in June 2012, and arrived at the White House today. Just like Bo, she’s a Portuguese Water Dog, which works great for the Obamas because of allergies in their family.

Sunny is the perfect little sister for Bo – full of energy and very affectionate – and the First Family picked her name because it fit her cheerful personality.

And the FLOTUS is already tweeting up a storm:

Welcome, Sunny! I already love you because I grew up with a poodle named Sunny, who was allergy-friendly and also rescued, but hey, who can get too preachy on such a delightful occasion. Awesomely, the Obamas are making a donation to the Washington Humane Society in Sunny's honor. Finally: Bo, good luck with your new sis — if you ever want to talk strategies for dealing with younger siblings, I'm sure you can hit up Malia for advice.

[White House]