Rich Lowry: Rudy Giuliani’s harebrained scheme

(Andrew Harnik | AP file photo) Rudy Giuliani, an attorney for President Donald Trump, waves to people during White House Sports and Fitness Day on the South Lawn of the White House, in Washington on May 29, 2018. President Donald Trump's chief of staff, cast aside like so many of Trump's advisers, irked the president with his efforts to bring some discipline to him and his operation. But if there's one thing that's obvious from the Ukraine controversy, it's that the president could use more "no men."

During Roman triumphs celebrating military victories, a slave was supposedly given the task of riding behind the conquering general and constantly whispering in his ear, "Remember, you are…