The Humane Society Legislative Fund (HSLF)—now operating as the Humane World Action Fund (HWAF)—is the political and lobbying machine of the Humane Society of the United States (HSUS), which itself rebranded in 2025 as Humane World for Animals (HWA). Despite its compassionate-sounding name, the organization’s primary goal is to influence policy and elections, not to care for shelter animals.