>> don't even want it debate it. thank you for being with us, senator bob casey. coming up, why are republicans still so afraid of donald trump? and will they support him, will the support of him put more americans at risk of gun violence? that's next. and if the tragedy in texas doesn't tug on your heart strings, and the heart strings of lawmakers, and urge them to act on gun control, maybe tugging on their purse strings will. my colleague with today's other top news stories. richard lui? >> some of the stories we're watching this hour, ukraine president volodymyr zelenskyy made his first...