U.S. Army whistleblower Chelsea Manning celebrated her first steps of freedom Wednesday, tweeting a photograph of her shoes as she walked out of Fort Leavenworth Prison in Kansas as a free woman. Manning spent seven years behind bars, much of it in solitary confinement. President Obama commuted the remainder of her 35-year prison sentence shortly before he left office. The Obama administration prosecuted Manning under the Espionage Act after she revealed secrets of the U.S. State Department and Pentagon—including evidence of war crimes and support for U.S. allies committing torture.