Rep. Katie Porter needs an influx of “undecided” votes to qualify for the November run-off for the late Dianne Feinstein’s seat in the U.S. Senate.

As ballots land throughout California, Rep. Katie Porter’s mission in the U.S. Senate race is to swing the 17% undecided in the latest Emerson College poll, chip off support from Reps. Adam Schiff and Barbara Lee, and tear down Steve Garvey.

That’s a lot of whiteboard to cover with the March 5 primary looming. Porter is now 12 points behind Schiff and is six points behind Garvey. Every public appearance is now fraught for Porter, who started the race looking like she’d easily waltz into the November runoff.

Porter’s appearance in the final Senate candidates debate Tuesday showed her certainly making her points, and she returned again and again to the influence of corporate PACs and earmarks. Schiff’s latest earmarks are the bite-sized chunks removed courtesy of his Mike Tyson-inspired colleague from Orange County. Was it enough?

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Porter’s “purity test,” in Schiff’s words, was the main theme of the debate held on the Universal Studios lot, which happily featured no annoying sound effect bells like the second debate. However, someone at Universal obviously CGId a man named Steve Garvey into the debate, but someone forgot to write him a script.

Properly lit and seasoned, a baked potato could beat Garvey in a debate. The threshold for Porter is........

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