In her first speech since Joe Biden selected her as his running mate, Senator Kamala Harris told multiple lies. To wit: “The president’s mismanagement of the pandemic has plunged us into the worst economic crisis since the Great Depression,” Harris said. False. The pandemic and its associated lockdowns, not the president, are responsible for the economic contraction. Donald Trump is not the president of the euro zone, which suffered through an even more dire economic contraction in the second quarter: minus 40.3 percent, on an annualized basis, as against minus 32.9 percent in the US. The U.K. suffered a contraction...