On August 10, 2022, four Senators, Elizabeth Warren (D-MA), Dick Durbin (D-IL), Sheldon Whitehouse (D-RI), and Bernie Sanders (I-VT), sent a letter to Acting Comptroller of the Currency Michael Hsu, asking him to reverse four interpretive letters regarding whether it is permissible for national banks to provide cryptocurrency services.

Under Mr. Hsu’s predecessor, Acting Comptroller