 Bottom line, we need public hearings. We need a full and thorough investigation. Tomorrow, Congress is set to grill Secret Service Director Kimberly Cheadle on how her agency failed to protect the former president. We talk exclusively with House Oversight Committee Chairman James Comer about the demand for answers and with our Sunday panel on the director's freeze-out with lawmakers at the RNC convention. Stonewall! We're doing nothing! All right now on Fox News Sunday.