Donald Trump has issued pardons to 15 people including two figures convicted of lying to the FBI during an inquiry into the US president’s campaign.
Ex-campaign aide George Papadopoulos and attorney Alex van der Zwaan are among those who received the presidential clemency.
Mr Trump also pardoned four security guards involved in a 2007 massacre in Iraq and two ex-congressmen.
He is expected to issue more pardons before leaving office next month.
It is common for outgoing presidents to use their right to issue pardons, which wipe out convictions.
George Papadopoulos and Alex van der Zwaan both served brief jail sentences.
Papadopoulos pleaded guilty in 2017 to lying to the FBI about the timing of meetings with alleged go-betweens for Russia during the run-up to the 2016 election.
He was the first former Trump aide to be arrested in the Russia investigation led by Special Counsel Robert Mueller.
He falsely claimed that he had met two individuals with Russian connections prior to working with Donald Trump’s campaign but had in fact met with them after joining.
On Twitter, he thanks President Trump and said the pardon meant “the world to me and my family”.
Van der Zwaan also admitted making false statements during the Mueller investigation. Mr Trump has repeatedly dismissed the Mueller investigation as “a hoax”.
“Today’s pardon helps correct the wrong that Mueller’s team inflicted on so many people,” the White House said in a statement.
Also pardoned were former Republican lawmakers Chris Collins and Duncan Hunter.
Former New York congressman Collins, a staunch supporter of Mr Trump, pleaded guilty in 2019 to charges of insider trading. He has been serving a 26-month prison sentence.
Earlier this year, former California congressman Hunter was sentenced to 11 months in jail for misusing campaign funds.
Four former Blackwater security guards – Nicholas Slatten, Paul Slough, Evan Liberty and Dustin Heard – were also pardoned. They were convicted six years ago of killing 14 Iraqis in a square in Baghdad in 2007.
The shootings caused international outrage and a debate over the role of defence contractors in warfare.
As well as the 15 full pardons, Mr Trump commuted all or part of the sentences of five other people.
However, Mr Trump has so far been less enthusiastic in using his right to grant clemency than any of his recent predecessors, according to the Pew Research Center.
Barack Obama, whom Mr Trump replaced in 2017, granted 212 pardons and 1,715 commutations – the most since President Harry Truman in the 1940s and 1950s. By contrast, Mr Trump has now granted more than 40 pardons.
Trump’s use of presidential clemency has caused controversy because of the nature of his pardons and commutations, the research centre said.
Many have had a “personal or political connection to the president,” according to a July analysis by the Lawfare blog.