March 6, 2018 3:54 pm Students Across the US Are Asking ‘What If' in New Ad Many of the Parkland shooting survivors are taking action by asking “What if” in a new ad that pushes for gun reform. US & World Videos 1:37 Low public approval for some Trump Cabinet picks, poll finds 24:40 @Issue: How Mayor Wu is planning for incoming Trump administration 2:51 Analysis | Why is Trump still backing Pete Hegseth for defense secretary? 4:01 Analysis | What problems can Musk, Ramaswamy face with new DOGE effort? 3:06 Analysis | What's going on in South Korea, and can Americans learn from it?