One of James Taranto's tongue-in-cheek tropes at his Best of the Web Today column is "We Blame George Bush." In a recent example, "We Blame George W. Bush" was placed over a headline reading: “Slipping Into a Food Coma? Blame Your Gut Microbes.†As Wikipedia describes it, the trope "is a play on the perceived tendency for many of his detractors to lay the blame for pretty much anything" on Bush. And lo and behold, from today's Morning Joe comes a real-life example of the phenomenon. Mika Brzezinski blamed Donald Trump's proposal to ban all Muslims from the US, on...