These are the headlines you Need2Know:
* **Trump Threatens Iran on Twitter:**
President Trump lashed out against Iranian President Hassan Rouhani late Sunday, warning him -- in an all-caps [tweet](https://twitter.com/realDonaldTrump/status/1021234525626609666) -- to "never, ever threaten the United States again or you will suffer the consequences the likes of which few throughout history have ever suffered before." His tweet comes in response to Rouhani's warning to Trump that "war with Iran is the mother of all wars." Read the details on [NPR.](https://www.npr.org/2018/07/23/631454795/trump-to-irans-president-never-ever-threaten-the-u-s-again)
* **Deadly Shooting in Toronto:**
Two people died and a dozen others were wounded in Toronto after a shooter opened fire in a popular neighborhood late Sunday. Neither of the victims has been identified. Authorities say the gunman is also dead, and they are now investigating the motive behind the shooting. Read the latest on [CNN.](https://www.cnn.com/2018/07/22/americas/toronto-restaurant-shooting/index.html)
* **Mourning Boat Accident Victims:**
The 17 victims of the duck boat accident in Missouri were remembered in a service on Sunday near the site of the accident. The memorial came as federal investigators are examining the boat's black box and video footage. Read more at [CBS News.](https://www.cbsnews.com/news/branson-community-mourns-missouri-duck-boat-victims-today-2018-07-22/)
* **Italian Wins the British Open:**
Francesco Molinari claimed the Claret Jug on Sunday, becoming the first Italian to win a major. He outlasted Tiger Woods, Jordan Spieth, Rory McIlroy and others to secure the prize. Read more at [BBC.](https://www.bbc.com/sport/golf/44918313)
Cheddar's Hope King gets into the latest.
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As we celebrate Black History Month, Cheddar is highlighting prominent Black Americans who are carving their own historic paths and trailblazing in their fields. Today we feature Ketanji Brown Jackson, the first Black woman SCOTUS nominee.
Russia's invasion of Ukraine went hand in hand with cyberattacks against Ukrainian government websites and financial institutions. Cheddar News speaks with cybersecurity expert Karim Hijazi, CEO of Prevaillon, on why the Russian cyberwarfare is concerning to other nations.
Florida legislation being called the 'Don't Say Gay' bill would restrict some discussion of sexual orientation and gender identity in classrooms with young students. Jon Harris Maurer, public policy director at Equality Florida, joins Cheddar News to discuss.
President Joe Biden promised during his campaign to focus on stable and ally-focused foreign policy, and the Russia-Ukraine crisis seems like an opportunity for him to focus on that tactic after last year's chaotic Afghanistan withdrawal. So far, Biden and western allies have banned together to sanction Russian banks, billionaires, and even President Vladimir Putin himself. Meanwhile, Biden has not deployed U.S. troops to intervene directly in Ukraine. Jack Detsch, national security reporter at Foreign Policy, joins Closing Bell to discuss why Biden is focusing on a sanctions-based, ally-focused strategy, what impact sanctions could have on Russia's economy, and more.
As Russia continues its attack on Ukraine, protests are popping up in major cities across the U.S., including across the street from the United Nations in New York City.. Chloe Aiello reports.
