At the Memphis Safe Task Force roundtable on March 23. Photo: Roberto Schmidt/Getty Images As travelers languished in hours-long security lines at more than a dozen U.S. airports this week, President Trump boarded Air Force One headed for Memphis . He had a victory lap to take. “We stopped crime!” he declared at an event at the city’s airport. About a year earlier, he had deployed federal troops here as part of his blitz against Democrat-governed jurisdictions. Crime was down 43 percent