Despite whiners, top two again works as planned

It happens every two years during the spring primary election season: One major party or the other feels wronged by the top-two primary system Californians adopted in 2010 and whines for months about its plight.
In 2016, the griping came from Republicans whose vote splintered in the primary run for the U.S. Senate and left the eventual November runoff field to two Democrats, Kamala Harris winning the seat previously held by three-termer Barbara Boxer.
This year Democrats did the complaining. The