“Katie Porter’s public-relations meltdown last week was damaging enough. What may be more humiliating is how few of her former House colleagues or Democratic leaders are rallying to her defense,” Politico reports.“Much like her time on Capitol Hill, Porter, the frontrunner in the race for California governor, is on an island — still reeling from the fallout over a pair of viral videos that captured her on-camera outbursts with a staffer and reporter.”