In September 2018, the Congressional Leadership Fund (CLF), the largest Republican super PAC active in U.S. House races, announced a $400,000 ad buy in support of Walters' campaign.[22] In October 2018, the Los Angeles Times reported that the CLF had not purchased advertisements for Walters in its opening round of broadcast television advertising buys in Southern California.[23] The CLF pushed back on the Los Angeles Times report, saying they had reserved over $3 million in Walters' district and had begun advertising there in August.[24]