The FBI case against the Southern Poverty Law Center basically says that if you donate money to the SPLC, then they use some of it to pay informants to infiltrate white nationalist organizations to uncover stuff like this.
https://www.splcenter.org/resources/extremist-files/stephen-miller/

Stephen Miller
Stephen Miller is credited with shaping the racist and draconian immigration policies of President Trump, which include the zero-tolerance policy, also known as family separation, the Muslim ban and ending the Deferred Action for Childhood Arrivals (DACA) program. Miller has also “purged” government agencies of civil servants who are not entirely loyal to his extremist agenda, according to a report […]




