RFK Jr.'s anti-science policy triggers CDC resignations. Also, two children are dead and 17 people are injured in a mass shooting at a Minneapolis Catholic school. Plus, a Trump-appointed federal judge excoriates the Trump Justice Department in a scathing new ruling. And an Iowa Democrat flips a long-held GOP state Senate seat. Dr. Ashish Jha, Rep. Ro Khanna, Rep. Maxwell Frost, J. Michael Luttig, and Iowa state Senator-elect Catelin Drey join Ali Velshi.