Think back to 2016 and the campaign then. Donald Trump used to recite a poem about a woman who took a dying snake into her house and nursed it back to health. The snake did become healthy and then immediately whipped around and bit the woman. As she breathed her last breath, the woman asked the snake, "Why did you do this?" "Well, because I'm a snake," was the reply. "That's what we do." All of which somehow reminds us of disgraced former National Security Adviser John Bolton. Republicans in Washington might seem shocked to discover that Bolton has turned...