(Commentary) Dick Durbin of Illinois, the majority whip, told reporters that he was skeptical of invoking the 14th Amendment because it doesn’t specify how to determine whether someone “engaged in insurrection” and whether that determination requires a court conviction. As for the first issue, Philip Zelikow, a professor of history at the University of Virginia, argues in Lawfare that regardless of whether Mr. Trump can be said to have “engaged in insurrection” against the Constitution, he clearly gave “aid or comfort” to one by encouraging his supporters to “fight like hell” at the Capitol to...