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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More than $200 billion may have been stolen from two large COVID-19 relief initiatives, according to new estimates from a federal watchdog investigating federally funded programs that helped small businesses survive the worst public health crisis in more than a hundred years.
Using chainsaws, heavy machinery and controlled burns, the Biden administration is trying to turn the tide on worsening wildfires in the U.S. West through a multi-billion dollar cleanup of forests choked with dead trees and undergrowth.
The Supreme Court ruled Tuesday that state courts can act as a check on their legislatures in redistricting and other issues affecting federal elections, rejecting arguments by North Carolina Republicans that could have transformed contests for Congress and president.
Ron DeSantis asked a federal judge to throw out a lawsuit from Walt Disney Co. that accused the Florida governor of violating its contract with the state for his recent actions against the company.
Florida Gov. and 2024 presidential candidate Ron DeSantis outlined key immigration policies in Texas on Monday, vowing to end birthright citizenship along with mass detention and deportations.
New Zealand acknowledged it has an aging Boeing 757 so prone to breakdowns they had sent an empty backup to ensure Prime Minister Chris Hipkins didn't get stranded in China, where he is leading a trade delegation.
Delaware state Sen. Sarah McBride announced Monday she's running for the U.S. House of Representatives. Already the first openly transgender state senator elected in the country, she'd be the first transgender member of Congress if she wins in November.
