Taken from the title of the 1944 film Gaslight, the term “gaslighting” has firmly entered the American lexicon over the past several years. The film, an early entrant in the psychological thriller genre, features a husband who works to slowly convince his wife that she is experiencing delusions, convincing her not to trust what she is seeing with her own eyes. It’s from this origin that we arrived at the modern use of the term to describe a form of psychological manipulation in which someone is made to doubt their own senses and sanity. It is a technique most often employed by conmen and abusers. Now, it is being adopted en masse by the Christian nationalist movement in America to defend their political project from hard-earned criticism.