After Obama took office in January 2009, the unemployment rate would peak at 10 percent in October of that year as the country began to emerge sluggishly from the Great Recession. At the end of four years, the rate had dropped just 2 percentage points to 8 percent in January 2013. The ingredients of the lackluster recovery, which are currently being touted by Obama’s former No. 2, Biden, were raising taxes and regulations on businesses and the “wealthy.” After taking office, Trump made four very un-Obama-like moves: He significantly cut government regulations on businesses; he signed tax cuts for businesses...