According to the Journal, Bisignano "will report directly to Bessent, who will remain the formal head of the IRS as acting commissioner," and that he "will help implement the administration's vision for the IRS, which emphasizes upgraded technology and retreats from the heavier enforcement initiatives started under President Joe Biden."
Bisignano's appointment comes weeks after Billy Long, the previous IRS commissioner, got ousted from his job after working there for under two months.
Social Security advocates reacted to the move by condemning the administration for creating even more turmoil at the Social Security Administration (SSA).
Nancy Altman, president of Social Security Works, slammed the administration for giving Bisignano added duties when he was already "unqualified" to serve as Social Security commissioner.
"Never in Social Security’s 90-year history has a commissioner held a second job," she said. "Bisignano’s new role will leave a leadership vacuum at the top of the agency, especially since Trump hasn’t even nominated a deputy commissioner."
Altman further accused the administration of "allowing Social Security to rot through sabotage and neglect" by downgrading the program's top role to part-time.
Richard Fiesta, executive director for the Alliance for Retired Americans, similarly emphasized that running the SSA was "a full-time job," and said that the Trump administration had already caused "chaos" at the agency by slashing longtime staff members.
"Every American who has paid into Social Security should be outraged," he said. "Americans pay for the workers and administration of the agency through their Social Security withholdings in every paycheck. We expect a full-time commissioner for our money. Instead, we’re now getting a part-time commissioner drawing a full salary from our Social Security taxes."
Kathleen Romig, director of Social Security and disability policy at the Center on Budget and Policy Priorities, described Bisignano’s appointment as "alarming news" and said it raises "major concerns."
Specifically, Romig warned about potential security breaches of Americans' data at both the IRS and SSA.
"We know that from the beginning they’ve been trying to bulldoze protections of the sensitive data that each agency holds," she wrote in a post on Bluesky. "Early this year, acting heads of both SSA and Treasury were both pushed out over data access"
She then pointed to reports that the Department of Government Efficiency has been working on a "data lake" that uses sensitive information from both agencies "to track and surveil undocumented immigrants" residing in the US.
"This unprecedented arrangement cries out for meaningful oversight to ensure that each agency adequately serves the public, conflicts of interest are resolved, and our most sensitive data are protected," she said.
