PORTER: You might have seen this ad paid for by Washington's special interests. It's a straight-up lie. I'm Katie Porter and I oppose higher gas taxes and I won't be afraid to take on leaders of both political parties and do what's right for Orange County taxpayers. Mimi Walters? Mimi Walters votes with Donald Trump 99% of the time, and Mimi Walters raised taxes on middle-class Californians. I'm Katie Porter and I approve this message because I’ll stand with Orange County families 100% of the time.