Health Secretary RFK Jr. defends his vaccine policies and CDC firings as he faces tough questions on Capitol Hill from both sides of the aisle. Then, the DOJ opens a criminal probe into Federal Reserve Governor Lisa Cook. Plus, we hear from former Democratic Senator Jon Tester on what rural America is saying about Trump's tariffs. Peter Baker, Dave Weigel, Jake Lahut, Peter Goodman, Ron Insana, Dr. Tom Frieden, Dr. Michael Osterholm, and former Sen. Jon Tester (D-MT) join The 11th Hour