SCORE ONE FOR THE TWO-PARTY SYSTEM. A couple months ago, Rasmussen Reports deployed some polls that found a xenophobic, enforcement-oriented third-party candidate would net 30-some percent of the vote, a mere single percent below the Democrats' haul. At the time, I dismissed the results as an irrelevant artifact. Now, Mike Crowley notes that precisely such a candidate ran in the CA-50 election. His haul? A pathetic 3.7 percent. So much for that.