NBC's “Meet the Press" — O'Brien; Sen. Rand Paul, R-Ky.; Democratic presidential candidate Sen. Michael Bennet, D-Colo.
CBS' “Face the Nation" — Defense Secretary Mark Esper; Sens. Mike Lee, R-Utah, and Tim Kaine, D-Va.; Rep. Adam Schiff, D-Calif; former Secretary of State John Kerry.
CNN's “State of the Union" — Esper; Lee; Democratic presidential candidate Tom Steyer.
“Fox News Sunday" — O'Brien; Sen. Chris Coons, D-Del.