Mrs. Clinton is the most dramatically polarizing, the most instinctively distrusted, political figure of my lifetime.

Peggy Noonan writes in The Wall Street Journal:

This is my 2008 slogan: Reasonable Person for President. That is my hope, what I ask Iowa to produce, and I claim here to speak for thousands, millions. We are grown-ups, we know our country needs greatness, but we do not expect it and will settle at the moment for good. We just want a reasonable person. We would like a candidate who does not appear to be obviously insane. We'd like knowledge, judgment, a prudent understanding of the world and of the ways and histories of the men and women in it.

Hillary Clinton? No, not reasonable. I concede her sturdy mind, deep sophistication, and seriousness of intent. I see her as a triangulator like her husband, not a radical but a maneuverer in the direction of a vague, half-forgotten but always remembered, leftism. It is also true that she has a command-and-control mentality, an urgent, insistent and grating sense of destiny, and she appears to believe that any act that benefits Clintons is a virtuous act, because Clintons are good and deserve to be benefited.

But this is not, actually, my central problem with her candidacy. My central problem is that the next American president will very likely face another big bad thing, a terrible day, or days, and in that time it will be crucial -- crucial -- that our nation be led by a man or woman who can be, at least for the moment and at least in general, trusted. Mrs. Clinton is the most dramatically polarizing, the most instinctively distrusted, political figure of my lifetime. Yes, I include Nixon. Would she be able to speak the nation through the trauma? I do not think so. And if I am right, that simple fact would do as much damage to America as the terrible thing itself.