January 31, 2017 1:04 am ‘Tonight Show': Trump Unveils ‘Huge Wheel of Decisions' Jimmy Fallon’s President Donald Trump responds to critics by explaining the scientific process behind some of his recent decisions. US & World Videos 4:17 New California law will remove restaurant surcharges 0:43 Daily marijuana use outpaces daily drinking in the US, a new study says 3:45 Scarlett Johansson responds after ‘eerily similar' voice pulled from ChatGPT 3:02 JoJo Siwa got punched during 21st birthday celebration 1:54 WATCH: Animals snack on cicadas at Chicago zoo