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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Toby Fricker, the chief of communications for UNICEF, joined Cheddar News to discuss the humanitarian crisis in Ukraine as the Russian invasion continues, displacing at least five million refugees from their home country. "The situation for children is horrific when you have to leave your home. I mean, that's traumatic for any child anywhere, but being forced to run for your life literally is really horrific to think about that," he said.
Laurence Tribe, a professor of constitutional law at Harvard University, joined Cheddar News to talk about the legal underpinnings of the ruling to lift the federal travel mask mandate. "Judge Mizelle decided that she would issue a nationwide injunction, which she and other conservatives have criticized in the past," he said. "That didn't stop her from doing it this time. She did it by just wiping away the CDC's rule, and she did it, have to say, in an opinion that was, well, I'll be honest, really stupid."
Marijuana legalization has spread across the country in recent years, and the number of Americans in support of legalization is at an all-time high. Andrew Bowden, CEO of the premium cannabis brand Item 9 Labs, joined Cheddar to break down the inner workings of the industry and how the industry can grow from here.
After a nationwide mask mandate for travel was struck down by a federal judge, Dr. Sampson Davis, an ER physician and bestselling author, joined Cheddar News to talk about the ramifications. "We are at a place where we are going to have to wait and see, unfortunately," he said. "The good news is that we're coming off a celebration of spring break, Easter, Passover, and we'll see what happens. But right now I'm not seeing a spike and people come into the hospital are truly sick. However, I'm still seeing people test positive for COVID."
Chris Vecchio, senior strategist at DailyFX, says the James Bullard and the Fed's bark may be louder than its bite when it comes to potential rate hikes in May. Investors brushed off any causes for concerns during Tuesday's session, which led to stocks ending the day sharply higher.
Catching you up on what you need to know on April 19, 2022, with a federal judge voiding mask mandates on public transportation, updates from the Russia and Ukraine war, Mac Miller’s drug dealer sentenced for involvement in the rapper's death, and more.
A federal judge’s decision to strike down a national mask mandate was met with cheers on some airplanes but also concern about whether it’s really time to end the order sparked by the COVID-19 pandemic.
