Although this is old news, it is now being brought up again.

Biden Administration Quietly Steps Up Effort to Close Guantanamo

Special representative named to oversee efforts to transfer detainees out of military facility in Cuba

WASHINGTON—The Biden administration is revamping its effort to close the Guantanamo Bay prison, for the first time appointing a senior diplomat to oversee detainee transfers and signaling it won’t interfere with plea negotiations that could resolve the long-stalled prosecution of alleged 9/11 mastermind Khalid Sheikh Mohammed and four co-defendants.

After taking a low-profile approach to the matter for the first year of his term to avoid political controversy, President Biden is moving closer to fulfilling a campaign promise to shut the facility, people familiar with the matter said.

https://www.wsj.com/articles/biden-administration-quietly-steps-up-effort-to-close-guantanamo-11663412402