Hillary won just enough to show that it is ludicrous to oust a 10-point winner at this late junction, but not quite the blow-out that might cause a stampede to her in the next few states. The Democrats are tottering at the edge of the abyss. They are about to nominate someone who cannot win, despite vastly out-spending his opponent, any of the key large states — CA, NJ, NY, OH, PENN, TX, etc. — that will determine the fall election. And yet not to nominate him will cause the sort of implosion they saw in 1968 or the sort...