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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Authorities on Thursday were trying to determine who sent letters filled with fentanyl or other substances to local election offices, an attack that appears to have targeted multiple states in the latest instance of threats faced by election workers around the country.
The White House said Israel has agreed to put in place four-hour daily humanitarian pauses in its assault on Hamas in northern Gaza starting on Thursday, as the Biden administration said it has secured a second pathway for civilians to flee fighting.
Columnist and political analyst Jonathan Harris joined Cheddar News to break down what stood out from Wednesday's third Republican presidential primary debate.
Mississippi's largest county ran out of ballots during Wednesday's governor's election as some voters say they had to wait for up to an hour for new ballots to be printed before they could cast their votes.
Republican presidential candidates used the third debate of the GOP primary campaign to show their support for Israel and display at least some willingness to criticize Donald Trump.
The National Zoo's three giant pandas, Mei Xiang, Tian Tian and their cub Xiao Qi Ji. on Wednesday began their long trip to China, leaving behind an empty panda exhibit with no certainty that pandas ever would again take up residence there.
Palestinians living in the heart of Gaza’s largest city said Wednesday they could see and hear Israeli ground forces closing in from multiple directions, accelerating the exodus of thousands of civilians as food and water become scarce and urban fighting between Israel and Hamas heats up.
