President Donald Trump's unconventional approach to clemency has spread hope among federal prisoners and formerly incarcerated people around the United States, prompting a wave of petitions carefully crafted to capture his attention. Like other presidents, Trump has drawn criticism for granting pardons and commutations to political allies. But legal scholars say the Republican president also has cast aside the traditional criteria and a clemency process historically overseen by nonpolitical Justice Department personnel. Trump has pardoned and commuted the sentences of more than 1,600 people since January. Administration officials say Trump decides on clemency requests after they're vetted by the White House Counsel's Office, the White House pardon czar and the Justice Department.