On April 30, the California State University at Northridge (in Los Angeles) Student Association sponsored a debate for candidates running for U.S. House in the 30th district. This is one of the best-known U.S. House races in California this year, because it pits two Democratic incumbent Congressmen against each other, Howard Berman and Brad Sherman. Redistricting forced them to run against each other.
Under the California top-two system, all seven candidates in this race will appear on the June 5 primary ballot. There are three Democrats, three Republicans, and one Green, Michael W. Powelson, a former history professor at this very school and also at LA Valley College. Powelson has a PhD from Columbia University and is endorsed by the Green Party.
The debate organizers determined that they would only invite candidates whom they expected had a chance to place first or second, so they invited the two incumbent Congressmen, and two Republicans. The debate organizers explain their reasoning here. They felt 7 candidates on the stage is too many.
This incident shows that the top-two system cannot give minor party candidates a realistic chance to appear in candidate debates. If the only candidates in the primary season who will be invited to debate are those perceived to be the front-runners, that becomes self-fulfilling. Minor party candidates won’t qualify for the November ballot, nor can they be write-in candidates in November, so they never get a chance for full exposure. UPDATE: see this coverage from IndyBay.