and west wing creator aaron sorkin revealing he suffered a .ling some effects, telling "the new york times," "i thought i was one of the people who could eat whatever you wanted, smoke as much as he wanted commands not going to affect me. boy, was i wrong." wish them both a swift recovery. when you come back, the friendship between two 4-year-olds and why so many are responding tonight. >> announcer: "world news tonight with david muir" and america strong, sponsored by horizon therapeutics. learn about thyroid eye disease. -whoo-hoo! -[ laughs ] well done, ma'am. what...did i do exactly? with snapshot from progressive, you get a personalized discount for doing exactly what you're already doing -- being a safe driver. congratulations. this is a bowling trophy. yeah, it's the biggest one they had. okay, thanks. mm-hmm. oh. have a good one. moderate-to-severe eczema. it doesn't care if you have a date,... ...a day off,... ...or a double shift. make your move and get out in front of eczema... with steroid-free cibinqo. not an injection,... cibinqo