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Stone was the sixth Trump assistant discovered guilty on charges connected to a justice department probe that alleged Russia tried to increase the Trump 2016 campaign.
Mr Trump has also publicly complained about the prosecutions of onetime project chairman Paul Manafort and previous White Home National Security Consultant Michael Flynn.
” President Trump has once again abused his power, launching this commutation on a Friday night, hoping to yet once again avoid examination as he lays waste to the norms and the worths that make our country a shining beacon to the rest of the world,” he said.
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Roger Stone has kept all along that the case against him was politically encouraged.