On a SLATE comment thread, I recently wrote as follows: Is it just me, or does all this have a very 1968 vibe for anyone else? Here as there, the incumbent President is a Democrat. In '68, of course, LBJ was eligible to run again, but was knocked out early. Let's ignore that difference for a moment and see what else lines up. There are two Democrats each with a plausible claim to continue the incumbent administration, for those who WANT to see it continued. There is a former cabinet member (Attorney General or Secretary of State, as the case may be) on the one side, and the sitting Vice President on the other. The establishment of the Dems could live with either of them. There is also a very non-establishment figure coming off from the flanks, with a surprisingly strong following in the base, call him Eugene or Bernie as you please. All very '68. The signature domestic accomplishment of the incumbent is in the area of health care reform, Medicare/Medicaid. Ove...