12 to KNOW Morning Brief for Tuesday, May 19, 2026.

SOURCES:  CBS News — Trump calls off attack on Iran amid serious negotiations toward peace deal  https://www.cbsnews.com/live-updates/iran-war-trump-warning-oil-stock-prices-futures-ceasefire-diplomacy/  NBC News — Rep. Thomas Massie confronts the full force of Trump's wrath in a GOP primary  https://www.nbcnews.com/politics/2026-election/rep-thomas-massie-confronts-full-force-trumps-wrath-republican-primary-rcna345257  Fox News — Cassidy primary defeat is a 'loss for the country,' Romney says  https://www.foxnews.com/politics/cassidy-primary-defeat-loss-country-romney-says  Fox News — Austin police arrest 3 juveniles allegedly linked to 12 random shootings injuring 4 people  https://www.foxnews.com/us/austin-police-arrest-2-juveniles-allegedly-linked-12-random-shootings-injuring-4-people  NPR — One of Ukraine's largest drone strikes on Russia killed at least four people  https://www.npr.org/sections/world/  Fox News — Canada confirms hantavirus case linked to cruise ship outbreak that has killed three passengers  https://www.foxnews.com/world/canada-confirms-hantavirus-case-linked-cruise-ship-outbreak-killed-three-passengers  Charles Schwab — Market Wavers Amid Conflicting Reports on War  https://www.schwab.com/learn/story/stock-market-update-open  NPR — Why you should care about 2 power companies merging. Hint: affordability  https://www.npr.org/2026/05/18/nx-s1-5825871/electricity-prices-nextera-dominion-merger-utilities  CBS Sports — Stanley Cup Playoffs 2026: Bracket, schedule and scores as field reaches conference finals  https://www.cbssports.com/nhl/news/nhl-playoffs-2026-stanley-cup-schedule-bracket-scores-results/  NPR — When a large tortoise named Rex got loose, a Phoenix-area neighborhood went into a tizzy  https://www.npr.org/sections/news/  HuffPost — Vermont Sheep Expected To Have Twins Surprises Farmers With 4 More  https://www.huffpost.com/section/weird-news— 12 to KNOW Automation