Obama was unable to close Guantanamo Bay due to political opposition and legal challenges that arose after he took office, despite initially promising to shut it down within a year. By the end of his presidency, he had reduced the number of detainees but faced significant congressional restrictions that hindered further action.
I mean, the President before him started two wars and the one after him fumbled COVID badly, so there is that.
Don’t get me wrong, Guantanamo Bay is still open so my opinion of Obama is pretty low, but…