Mr. Tolman is a former United States attorney in Utah appointed by President George W. Bush. He was a leading supporter of legislation overhauling sentencing laws championed by Mr. Trump and Mr. Kushner and was invited to the White House signing ceremony in December 2018. Since then, Mr. Tolman has emerged as a prominent advocate for clemency requests, with his firm’s website highlighting a White House statement crediting him with helping secure pardons or commutations for three people, including Mr. Kushner’s father, a wealthy real estate developer who was convicted of tax evasion, witness tampering and campaign finance violations. The White House has also credited Mr. Tolman with helping less well-connected offenders win clemency. There are no public records indicating Mr. Tolman was paid for those efforts.