US President Donald Trump pardoned his former campaign chairman Paul Manafort, associate Roger Stone and Charles Kushner, a real estate developer and the father of Mr Trump's son-in-law.
Mr Manafort was convicted as part of the special counsel probe into Russian meddling in the 2016 US election.
Mr Trump had earlier commuted the criminal sentence of Mr Stone, who was convicted of lying under oath to lawmakers.
It was the second wave of pardons Mr Trump has issued in two days and came just after he arrived in Palm Beach, Florida, for the holiday season.
In total, he issued full pardons to 26 individuals and commuted part or all of the sentences of an additional three people.
Mr Trump's pardoning of Mr Manafort spared the long-time Republican operative from serving the bulk of his seven-and-a-half-year prison term.
Mr Manafort, 70, was among the first in Mr Trump's inner circle to face charges brought by Special Counsel Robert Mueller as part of his probe into Russian interference in the 2016 presidential election.
Mr Stone was convicted in November 2019 by a Washington jury of lying under oath to lawmakers also investigating Russian interference in the 2016 election.
US President @realDonaldTrump has tonight announced pardons for his former campaign manager Paul Manafort and his former adviser Roger Stone. In all tonight, he's announcing pardons for 26 people. @rtenews pic.twitter.com/9THttgy1eO
— Brian O'Donovan (@BrianOD_News) December 24, 2020
Mr Trump commuted his sentence in July, a day before Mr Stone was due to begin serving a term of three years and four months.
Charles Kushner, father of Jared Kushner, was sentenced to two years in prison after pleading guilty in 2004 to 18 counts of tax evasion, witness tampering and making unlawful campaign donations.
In an unusual twist, the man who prosecuted Charles Kushner was Chris Christie, now the former governor of New Jersey, who also has served as an adviser to Mr Trump.
Mr Christie was quoted by CNN as saying Charles Kushner's case was "one of the most loathsome, disgusting crimes" he prosecuted.
