Michael Dukakis shows up in a tank. George H.W. Bush checks his watch during a debate. John Kerry says he was for the $87 billion for Iraq before he was against it. Mitt Romney writes off the 47 percent of voters who receive government benefits. Hillary Clinton lambastes the deplorables. Such moments brought clarity. They defined the candidates. They laid out the stakes. They changed the story. Let's add another to the list. On Tuesday, Kamala Harris appeared on The View. A friendly host asked if there's anything she would do differently than President Biden. Harris hesitated, as if she hadn't anticipated or understood the question. That was typical. Her answer was not. "There is not a thing that comes to mind," she said.