Just so everyone is clear, Barack Obama is speaking from the Xcel Center in Minnesota, the very arena where the Republican convention will be held. Sassy!

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.