Good Morning America Full Broadcast - Sunday, August 23, 2026

A fast-moving brush fire is forcing people from their homes and prompting Nevada's governor to declare a state of emergency. ABC News' Morgan Norwood and meteorologist Somara Theodore report; President Donald Trump imposed 50% tariffs on many Canadian imports after trade talks between the two countries collapsed. Canadian Prime Minister Mark Carney announced retaliatory tariffs; Treasury Secretary Scott Bessent says the U.S. will impose the "toughest sanctions" in history, a move he says, when combined with the naval blockade, it will be enough to "collapse" the regime; Judge denies 19-year-old Karmelo Anthony's request for a retrial; Medical advice for back-to-school vaccines; How students are flipping the script with 'empty nester' sendoffs for parents; and more on ABC's Good Morning America. ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. https://abcnews.com Download the ABC News app for the latest headlines and alerts: https://abcnews.com/devices Connect with ABC News on social media: Facebook:   / abcnews   Instagram:   / abcnews   TikTok:   / abcnews   X:   / abc   Threads: https://www.threads.net/@abcnews WhatsApp: https://whatsapp.com/channel/0029VajT... LinkedIn:   / abcnews