Grassley and Comer Letter to DOJ and FBI: https://www.grassley.senate.gov/imo/media/doc/grassley_comer_to_fbi_-_biden_1023.pdf
House Oversight Committee Subpoena: https://oversight.house.gov/wp-content/uploads/2023/05/Comer-Subpoena-cover-letter-and-Wray-Subpoena-050322.pdf