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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Israel rolled tanks into northern Gaza for what the military called a targeted raid aiming to destroy Hamas infrastructure. Meanwhile, the UN Security Council failed to pass two separate resolutions proposed by the U.S. and Russia on humanitarian aid for civilians in Gaza.
Republican Mike Johnson is the new speaker of the House, but the ally of Donald Trump inherits many of the same political problems that have tormented past GOP leaders.
President Joe Biden on Wednesday spoke out against retaliatory attacks by Israeli settlers against Palestinians in the West Bank in the aftermath of the Oct. 7 Hamas attacks on Israel. He also says he's redoubling his commitment to working on a two-state solution.
The U.N. warned on Wednesday that it is on the verge of running out of fuel in the Gaza Strip, forcing it to sharply curtail relief efforts in the territory blockaded and devastated by Israeli airstrikes since Hamas militants launched an attack on Israel more than two weeks ago.
The judge in Donald Trump’s civil fraud trial fined the former president $10,000 on Wednesday, saying Trump violated a limited gag order barring personal attacks on court staffers.
Republicans eagerly elected Rep. Mike Johnson as House speaker on Wednesday, elevating a deeply conservative but lesser-known leader to the seat of U.S. power and ending for now the political chaos in their majority.
With mail theft and postal carrier robberies up, law enforcement officials have made more than 600 arrests since May in a crackdown launched to address crime that includes carriers being accosted at gunpoint for their antiquated universal keys, the Postal Service announced Wednesday.
