Anthonys View News Today

Degeneres. you should do it. its for a good cause. >> reporter: as far as this whole carnival goes, hes all for it. >> you have no idea how every single challenge makes me feel. lifts my spirits. lifts every als patients spirits. >> reporter: so, its okay to laugh. its good to laugh. but its good, in anthonys view, also to remember why. >> youre really truly making a difference, and were so, so, so grateful. >> reporter: for "nightline," im john donvan in washington. >> such a great reminder. we...