A group of Minnesota Republicans called on Gov. Tim Walz (D-MN) to resign on Monday, marking intensifying criticism about how leading officials handled the widespread fraudulent use of taxpayer dollars reported across the state.

The lawmakers from the state House and Senate expressed concern that under Walz’s leadership, billions in state funds may have been mishandled and allowed to flow to fraudulent enterprises posing as daycares for low-income families, food assistance for needy children, and other publicly funded social welfare programs.