California Results Suggest Blue Wave Has Crested and Ebbed

The nation is just past halftime in the 2018 primary election cycle. Twenty states -- containing the majority, 228 of 435, of House districts -- have held their primaries, and all but the three with runoffs have chosen their nominees.

The latest results, taken together with the generic vote -- polls asking which party's House candidate you'll vote for -- undercut the many gleeful predictions of a blue wave that will produce a big Democratic majority in the House and perhaps the Senate, as well.