Rohrabacher seemed to have a comfortable lead of between 5 and 9 percent in various polls running up to the election, even after being massively outspent by Shady Harley Rouda. Yet Rouda magically beat all expectations and pulled out the win. Did a single news agency even bother to look into the disparity? No, they simply celebrated that ‘their’ guy won.
California is a lost cause and will be in its last throes before collapse within a scant few years. The aftermath will be a few elite enclaves of rich people walled away from a sea of (mostly Spanish-speaking) poor people forever demanding more and more in exchange for nothing beyond their (D) votes.
Actually the problem with Orange County is the problem of affluence. We are entering a Dystopia of Affluence. The rich elites living behind the gates are voting blue. See: https://www.firstthings.com/web-exclusives/2018/11/the-rich-turn-to-the-democrats