Outgoing U.S. President Donald Trump on Wednesday granted pardon to 73 people, including his former White House adviser Steve Bannon, in his last day in office, the White House said.

Bannon, 67, was charged last year with defrauding Trump supporters of hundreds of thousands of dollars in a border wall fundraising campaign.

He has pleaded not guilty. Bannon was an architect of Trump's 2016 election victory and later served as chief White House strategist. He left the White House in August 2017.

"Bannon has been an important leader in the conservative movement and is known for his political acumen," the White House said in a statement.

The 73 individuals Trump granted clemency also include Elliott Broidy, a major Republican Party fundraiser who pleaded guilty in October to violating foreign lobbying laws, and former Detroit Mayor Kwame Kilpatrick, who was sentenced in 2013 to 28 years in prison on corruption charges. 

Apart from that, Trump issued a pardon to Anthony Levandowski, a former Uber executive who was charged with stealing trade secrets from Google. 

President-elect Joe Biden, who beat Trump in an election last year, was due to be sworn in as the nation's next president later Wednesday.