US lawmakers warned: If you back anti-LGBT bills, we’re coming for you on election day.

Demonstrators wave flags and banners in front of the White House in Washington (Maria Belen Perez Gabilondo/AFP/Getty Images)

LGBT activists have warned US lawmakers that they will face a challenge on election day if they support anti-LGBT legislation.

There are a currently string of bills under discussion across US state legislatures targeting transgender rights protections and same-sex adoption rights, while a ‘freedom to discriminate’ law titled the First Amendment Defense Act…