WASHINGTON—In a very serious and damning new report published Wednesday, a government watchdog group has found that, as early as January, White House officials failed to heed repeated warnings of impending doom that arrived via four skeletal horsemen galloping through the sky. “On Jan. 3, the Trump administration received its first notification that a quartet of ghostly riders had barreled out of the endless night—auguring death, despair, and a great cataclysm upon the earth—but the president did not begin to take the threat seriously until mid-March,” said…