Via Andrew Sullivan, this video makes me very, very, happy.

If you’re interested, here’s more about the video’s joyful dancer, Matt.

Update: And once you’re done with that, it’s really worth watching this response video.

Ezra Klein is a former Prospect writer and current editor-in-chief at Vox. His work has appeared in the LA Times, The Guardian, The Washington Monthly, The New Republic, Slate, and The Columbia Journalism Review. He’s been a commentator on MSNBC, CNN, NPR, and more.