The pardons came at the recommendation of Trump allies in Congress and, in some cases, the conservative media.
Philip Esformes, a Florida nursing home mogul convicted of paying bribes in a Medicare fraud case, also had some of his sentence commuted by Trump.
Trump later granted Johnson a full pardon at this year's Republican National Convention.
George Papadopoulos visits "The Story With Martha MacCallum" at Fox News Studios on March 26, 2019 in New York City.
At his sentencing, Papadopoulos' then-lawyer called him "pro-FBI" and said he had lied so he might still be considered for a job in the Trump administration.
The defense lawyer, Thomas Breen, effectively blamed Trump for publicly urging people such as Papadopoulos to disregard the Russia investigators.
"The President of the United States hindered this investigation more than George Papadopoulos ever could," Breen argued. »