John Walsh, a former U.S. Attorney for the District of Colorado, has raised $122,000 in the first two weeks of his campaign for Denver district attorney.

He secured contributions from more than 425 donors, his campaign announced on Friday.

“Our collective energy and commitment to safety and fairness to ensure Denver remains a vibrant, welcoming and safe city for all of us is fueling the momentum behind this campaign; and it is continuing to grow,” Walsh said in a news release.

His campaign touted his experience in prosecuting complex cases, such as those involving organized crime and corporate fraud. Walsh is campaigning on tackling major issues plaguing Denver, such as gun violence, auto theft, addiction and homelessness.

Denver District Attorney race gains one candidate and loses another

Walsh served as Colorado’s U.S. Attorney from 2010-2016, appointed by President Barack Obama. During that period, he served as the chair of the Attorney General’s Advisory Committee of U.S. Attorneys, focusing specifically on white collar crime. 

Walsh has most recently been in private practice as a partner at WilmerHale, where he co-chaired the firm’s investigations and criminal litigation practice.

Meet Leora Joseph, who wants to be Denver’s next District Attorney

Walsh currently faces three opponents running to replace current DA Beth McCann: Former civil rights attorney Lisi Owen; former 18th Judicial District Deputy District Attorney Leora Joseph, who is now director of the state’s Office of Civil and Forensic Mental Health; and, Chief Deputy Denver District Attorney Matthew James.

Meet Lisi Owen, the former civil rights attorney running for Denver DA

Denver Gazette reporter Carol McKinley contributed to this report.