What is the birthdate of this American white supremacist, who calls himself an identitarian and who has had involvement with Lucian Wintrich?
May 11, 1978
Title: Richard B. Spencer
Passage: Richard Bertrand Spencer (born May 11, 1978) is an American white supremacist.  He is president of the National Policy Institute, a white supremacist think tank, as well as Washington Summit Publishers.  Spencer has stated that he rejects the label of white supremacist, and prefers to describe himself as an identitarian.  He has advocated for a white homeland for a "dispossessed white race" and called for "peaceful ethnic cleansing" to halt the "deconstruction" of European culture.
Title: Lucian Wintrich
Passage: Lucian Wintrich (born May 24, 1988) is an American political artist and political commentator and the White House correspondent for the Gateway Pundit.  He has frequently been described in media reports as associated with the alt-right, though now with the involvement of Richard B. Spencer in the aforementioned movement Wintrich has disavowed the label.
Title: Aryan Brotherhood of Texas
Passage: The Aryan Brotherhood of Texas (ABT) is an American white supremacist prison gang.  According to the Anti-Defamation League and the Southern Poverty Law Center, the Aryan Brotherhood of Texas is one of the largest and most violent white supremacist prison gangs in the United States, responsible for numerous murders and other violent crimes.
Lucian Wintrich Richard B. Spencer