CNN CNN Tonight February 23, 2022 06:35:00
About him as commander in chief. this is his opportunity now to turn that around, and so that's one of the main reasons the stakes are so high for him right now, wolf. >> good point indeed. abby phillip and john harwood, thank you very, very much. we're going to stay on top of this ukraine story. new developments emerging. but there's another important story we're following tonight as well. the debate over a fourth covid vaccine shot for many more americans. in other words, a second booster. dr. sanjay gupta joins me to take a closer look at how likely it is that that moment will come and, i...