Today’s Morning Joe aired a mock anti-Republican ad that its staff created. Scarborough said he told “the kids in the back that work for us” to “draw up an ad that will look like what we’re going to see next year.” As you’ll see from the video clip, the ad is predictable campaign fare, focusing on the Republican health care bill. Pre-existing conditions coverage disintegrates. Medicaid is “slashed.” And, of course, “huge tax cuts for the rich,” with images of President Trump against a backdrop of yachts and mansions. The ad ends with the disclaimer: “not an actual ad, but...