From its headwaters in Minnesota to the deltas of Louisiana, the Mississippi River welcomes millions of anglers every year. But as nitrate runoff and invasive species threaten fisheries throughout the River, the Mississippi needs a total restoration effort to ensure sportfish stay healthy for the next generation of anglers. Last month, Rep. Betty McCollum (D-MN) introduced the Mississippi River Restoration and Resilience Initiative Act (MRRRI). This bill, modeled on other successful regional restoration programs, will authorize $300 million in federal…