The Brennan Center is associated with the New York University Law School, and does research on voting laws across the country. Its attorneys have been involved in some of the lawsuits challenging voter ID laws, and other voting restrictions. Critics have said that these restrictions are veiled attempts to make it harder for minorities and lower income people -- who are more likely have issues obtaining the required IDs -- to vote, pointing to how rare in-person voter fraud is.
The RNLA, meanwhile, is a major proponent of voter restrictions and is known to sound the alarms over alleged voter fraud. While other Republican figures distanced themselves from Donald Trump's "rigged election" claims, the RNLA was among the voices cheering him on.