Ford retaliated by recording a "robocall"' sent to voters in Ainslie's ward. In 2016, Johnson paid $2,000 to robocall Utah voters accusing Evan McMullin of homosexuality. Duggan aggressively campaigned for Yancey, even voicing a robocall on her behalf. By March 2, Elections Canada had received 31,000 complaints related to the robocall scandal. Del Mastro was charged as being responsible for the Conservative response to the Robocall scandal. Former U.S. President Bill Clinton also recorded a robocall urging support for Doherty. YouMail is an Irvine, CA-based developer of visual voicemail and Robocall blocking software. A more sophisticated model uses crowdsourcing to build a more comprehensive blacklist of robocall numbers. California prohibits any robocall unless there is an existing relationship.