This dude is supposed to be a nobel prize winning economist, but he strikes me as a partisan, very partisan shrill. 

Hidden in the glowing praise of the democratic party is the following admission: "It’s true that the surge in median income comes after years of disappointment, and even now the typical family’s income, adjusted for inflation, is slightly lower than it was before the financial crisis."

So despite the spin, the average family income has decreased under Obama.