and donor to De León, also represented company as its lobbyist. De León criticized the state's high-speed rail project, arguing that construction should have started in major cities like San Francisco and Los Angeles, rather than the state's Central Valley. Gun control De León is an advocate of gun control. In 2014, he sponsored SB 808, which addressed the personal fabrication of firearms. The bill was subsequently vetoed by governor Jerry Brown. In 2016, De León led the charge in the passage of a package of 11 bills intended to prevent gun violence. These included De León's SB 1235, which created a new framework for buying and selling ammunition designed to address the ambiguities of his earlier SB 53, and his SB 1407, requiring a serial number from the California Department of Justice before building or assembling a gun. Health care De León is a supporter of creating a single-payer health care system. He promised to support senator Bernie Sanders's "Medicare for All" legislation if elected to the United States Senate. He supported SB 562, a proposed bill to create a single payer health care system in California, which stalled in 2017. Gender equity De León authored SB 548, legislation that would make significant investments in child care, with a focus on empowering women in the workforce. The state budget resulted with new funding for thousands of more slots for subsidized child care. In 2014, de León co-authored Yes Means Yes, the first law in the nation regarding affirmative consent and sought both to improve how universities handle rape and sexual assault cases and to clarify the standards, requiring an "affirmative consent" and stating that consent can't be given if someone is asleep or incapacitated by drugs or alcohol. "Lack of protest or resistance does not mean consent," the law states, "nor does silence mean consent." In 2015, de León co-authored follow-up legislation that requires public high schools teaching health education classes to include sexual assault prevention and strategies on how to build healthy peer relationships in their curricula. 2018 U.S. Senate election On October 15, 2017, de León announced his bid for the United States Senate, challenging incumbent U.S. Senator Dianne Feinstein in the 2018 election. The following day a super PAC created by California political strategists Dave Jacobson and Maclen Zilber was formed to support his candidacy. On June 5, de León came in second place in the