you're always welcome here. help us create better expectations out of congress. i got to jump, but you're always welcome. >> chris, you got it. i've got dna. i've got whistle-blower dna. we'll do it. >> thank you, sir. be well. >>> two vaccines now in play. good. good. but i've been saying this, and we've got to get our hands around it. this is a gift getting these done. operation warp speed, great idea, trump and co. the scientists who worked on it, what a body of all-stars. i hope you're up for huge prices. but are we going to waste it? i think we may waste it because we're not getting it together on the vaccines front. i know the general from -- general perna just jumped on the grenade and said, it's my fault. it's not his fault. now there's a mutation of the virus in britain. what does that mean? you know it's going to come here. does the vaccine work against it? does it change what we have to do, and who is in charge? answers from the top medical minds, next.