Ongoing federal and congressional scrutiny of Minnesota Governor Tim Walz centers on two tracks: extensive fraud in state Medicaid and social services programs during his tenure, with federal prosecutors estimating billions in losses and charging dozens of individuals, and a separate DOJ investigation into whether Walz and other officials obstructed immigration enforcement. House Oversight Committee hearings and reports have examined claims of delayed oversight responses and whistleblower issues, while Walz has publicly backed the fraud prosecutions and declined to seek reelection. Grand jury subpoenas were issued in January 2026 as part of the obstruction probe, yet no criminal charges or indictments have been filed against Walz himself as of mid-June. Traders assess the probability of formal charges by year-end based on the pace of these investigations, any new evidence from ongoing cases, and potential developments in the Trump administration’s enforcement priorities.