TO GO WOTH AFP STORY BY CHRIS LEFKOW -"US presidential pardons -- a powerful and controversial tool"
(FILES) In this file photo US President Donald Trump delivers the commencement address at the 2020 US Military Academy Graduation Ceremony at West Point, New York, on June 13, 2020. - US President Donald Trump has issued a number of pardons during his time in the White House and is expected to deliver more before he leaves on January 20, 2021.Trump has also reportedly asked lawyers about the possibility of issuing a pardon for himself for any crimes he might be charged with related to his time in office. (Photo by Nicholas Kamm / AFP)