changes to the paris xlimpt agreement before postponing it. >> it's not the big picture. it's that one particular program thatity knew was helping, that one particular community that i don't know if that's going to last and i don't know if i can rally enough people to save that and that hurts a lot. >> reporter: and as people hit the streets tomorrow for the march for science they hope it sends a strong message, not only to the white house but congress as they set to vote on the promosed budget in the coming weeks. a program note. we'll have a special primetime edition of "the lead" in addition to the regular 4:00 p.m. to discuss president trump's first 100 days. that's it for "the lead." i'm jim sciutto in for jim tapper today and i turn you over now to wolf blitzer where he is