Dear Mr. Bayan,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located Responses to Public Form Letters Signed by President Ronald Reagan, 1981 - 1988 in the Records of the White House Correspondence Office (Collection RR-0108) that may include the letter you seek. For information about this and other possible collections, please contact the Ronald Reagan Library (LP-RR) at email@example.com.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from LP-RR. We apologize for this inconvenience and appreciate your understanding and patience.
The United States Secret Service (USSS) was not involved in handling mail for presidents and did not retain copies for their holdings, except for matters relating to security concerns such threats to the president. Given the topic of your correspondence, it is unlikely that the USSS has copies of your letter or that copies may be located in the records of the USSS that have been transferred to the National Archives.
We hope this information is helpful.