It's always useful to know what a campaign is like, the lay of the land, so to speak, the supporters, the campaign operation, the candidate herself. Here in San Diego, Elizabeth Warren paid a visit Thursday, so I went, taking my elderly mother, blending into the crowd to learn how things looked from the Democrat side. The most obvious takeaway is that Warren is rising... Based on her own energetic appearance and stump speech, she's now begun campaigning as if she's got the Democratic nomination in the bag, and she's now attempting to move to the center. That signals a...