No, I haven’t lost my mind. Nixon was surely the worst person other than Dick Cheney ever to control the executive branch.

But the Nixon era was a time in which leading figures in both parties were capable of speaking rationally about policy, and in which policy decisions weren’t as warped by corporate cash as they are now. America is a better country in many ways than it was 35 years ago, but our political system’s ability to deal with real problems has been degraded to such an extent that I sometimes wonder whether the country is still governable…

So what happened to the days when a Republican president could sound so nonideological, and offer such a reasonable proposal?

Part of the answer is that the right-wing fringe, which has always been around — as an article by the historian Rick Perlstein puts it, “crazy is a pre-existing condition” — has now, in effect, taken over one of our two major parties. Moderate Republicans, the sort of people with whom one might have been able to negotiate a health care deal, have either been driven out of the party or intimidated into silence. Whom are Democrats supposed to reach out to, when Senator Chuck Grassley of Iowa, who was supposed to be the linchpin of any deal, helped feed the “death panel” lies?