Friday morning on the White House’s South Lawn, President Donald Trump held a triumphant press conference. The reason? The news that the nation’s gross domestic product increased 4.1 percent in the second quarter.

Previously, Trump said, "If it has a four in front of it, we're happy."

To give us a lesson in these numbers of economic happiness, The Show was joined by David Wessel. He’s the the director of the Hutchins Center on Fiscal and Monetary Policy at the Brookings Institution.