Eyes on Lies postcards sent to national leaders. One never knows where these messages land. Another option is writing directly to the White House. https://www.whitehouse.gov/contact/ “Emails sent to the White House or written by White House staff are not immediately public, and the Executive Office of the President is not subject to the Freedom of Information Act (FOIA). However, they are governed by federal record-keeping laws and eventually become public after a waiting period:

The Presidential Records Act (PRA): Passed in 1978, the PRA mandates that all official records created or received by the President, White House staff, and public communications sent to official White House channels must be preserved.” (See https://obamawhitehouse.archives.gov/blog/2009/09/19/reality-check-presidential-records-act-1978-meets-web-based-social-media-2009.)

My hope is that years from now, some dedicated soul will do the research and demonstrate the conscience and integrity of many U.S. Americans during this time.