Manning was convicted in 2013 of leaking a trove of classified documents. 1st Class Bradley Manning, a USA military intelligence analyst. She was convicted by court-martial in 2013 of espionage and other offenses for furnishing more than 700,000 documents, videos and diplomatic cables to WikiLeaks, an global organization that publishes information from anonymous sources.
She moved back to Maryland last year after President Barack Obama commuted her 35-year sentence in the final days of his administration.
In his statement, Obama said that Manning's sentence was "disproportionate" to those faced by other whistleblowers.
"Police and prosecutors steal more through "civil asset forfeiture" than all "property crime" combined", Manning wrote.