TO GO WITH AFP STORY BY CHRIS LEFKOW -"US presidential pardons -- a powerful and controversial tool"
(FILES) In this file photo US President Donald Trump smiles during the first presidential debate at Case Western Reserve University and Cleveland Clinic in Cleveland, Ohio, on September 29, 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 SAUL LOEB / AFP)