WASHINGTON — For President Barack Obama, the long-delayed release of a scathing Senate report on harsh CIA interrogations underscores the degree to which the legacy of George W. Bush’s national security policies has shadowed the man elected to change or end them.

While Obama banned waterboarding and other tactics upon taking office, his administration struggled for years with how to publicly reveal the scope of the program. Even as Obama claims closure in the torture debate, big chunks of Bush’s national security apparatus remain in place, including the U.S. detention center at Guantanamo Bay, Cuba, and sweeping government surveillance programs. Obama has also thrust the U.S. back into a military conflict in Iraq and faces questions about his ability to end the Afghanistan war by the time he leaves office.