“Katie Porter (D) captured a Republican-held U.S. House seat in the heart of what once was Southern California’s Reagan country, extending a rout of the state’s GOP House delegation that might not be over,” the AP reports.

“Porter’s upset in Orange County is a sign of changing times in a region once known nationally as a GOP fortress.”

“Porter, a law professor and protege of Sen. Elizabeth Warren (D-MA), defeated Rep. Mimi Walters (R-CA), who was re-elected in a walkover just two years ago in the 45th District.”