The strong opening for the California Republican Party is not simply for a Republican as such, but for a post-partisan executive: a socially moderate, managerial, tough-on-crime, tough-on-homelessness candidate in the mold of for former Gov. Arnold Schwarzenegger, someone capable of appealing to suburban voters without completely alienating the remaining GOP base. Many Californians, including some Democrats and independents, are plainly frustrated with the state’s one-party dominance and the political culture that produced Gov. Gavin Newsom (D) and former Vice President Kamala Harris. Against an establishment Democrat like Rep. Eric Swalwell (D) — who would read, fairly or not, as more of the same — such a Republican might have a genuine opening, even if the primary does not produce a lockout. Even then, such a candidate would still have to prove more compelling than left-populists like Tom Steyer and Porter, who are channeling the Bernie Sanders wing on affordability and progressive economic reform, and who may present the toughest general-election challenge of all.