These are the headlines you Need 2 Know.
* **Two Killed in Florida Shooting:**
A 24-year-old gunman opened fire Sunday at a Madden video game competition in Florida, killing two and injuring 11 before turning the gun on himself. The shooter, David Katz, won the tournament in 2017 under the pseudonym "Bread." Police still haven’t determined a motive. For the latest [click here](https://www.cnn.com/2018/08/26/us/jacksonville-madden-shooting/index.html).
* **Remembering McCain:**
The late Arizona Senator died from cancer on Sunday. He was 81. The former Vietnam vet, prisoner of war, and six-term Republican senator was known for collaborating with lawmakers on both sides of the aisle. Here's how Republicans and Democrats are [remembering the former presidential candidate](http://www.time.com/5377616/john-mccain-political-tributes/).
* **Pope Francis Accused of Covering Up Abuse:**
According to an explicit, 11-page letter published Sunday, Pope Francis knew about sex abuse allegations made against ex-Cardinal McCarrick for years. The letter, penned by the Vatican’s former ambassador to the U.S., calls for the Pope's resignation and said he covered up the abuse and even elevated McCarrick's status.
[Read the latest, here](https://www.nbcnews.com/news/world/explosive-letter-claims-pope-francis-helped-cover-cardinal-mccarick-sex-n903936).
* **Hurricane Lane Flooding Ahead:**
The storm drenched Hawaii with more than 46 inches of rain last week, and officials say the worst is over. But Lane is now considered a tropical storm, and forecasters warn that serious flooding is a real possibility. For the latest [click here](https://www.newsweek.com/hurricane-lane-latest-hawaii-storm-warnings-lifted-flooding-still-major-1090945).
Cheddar's Jill Wagner gets into the latest.
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A three-judge panel of the 9th U.S. Circuit Court of Appeals has thrown out California’s ban on high-capacity ammunition magazines.
Lee County, deep in the Appalachian Mountains, is one of many rural school districts around the country where the decision over whether to bring students back into classrooms is particularly fraught.
President Trump and economic adviser Larry Kudlow have been touting a capital gains tax cut as part of a Phase 4 stimulus package, but experts contend any gains from such a cut would be minimal and largely concentrated among the most wealthy citizens.
Facebook has launched the 'Voting Information Center' as a hub to provide users with accurate information regarding everything voting related. Emily Dalton, director of social impact product at Facebook, talks the company's new initiative and goals of the program.
Dodger Stadium will serve as a vote center for the presidential election in November, making the Dodgers the first Major League Baseball team to make their venue available for voting.
Joe Biden is calling for a nationwide mask mandate, citing health experts’ predictions that it could save 40,000 lives over the next three months.
Today, President Trump admitted to undermining the USPS in attempt to stall the mail-in voting process. California representative, Ami Bera, talks the November election and the stalled stimulus deal.
Cheddar's J.D. Durkin goes into why he believes leaving former candidate and businessman Andrew Yang isn't a good look for the DNC.
Young people across the world are uniting, calling on policymakers to adress the climate crisis. 15-year-old Alexandria Villasenor, founder of Earth Uprising, talks launching the movement and an upcoming partnership with GAP Kids on a virtual rally, encouraging the youth to make their voices heard about issues they want fixed.
Israel and the United Arab Emirates say they are establishing full diplomatic relations in a U.S.-brokered deal that required Israel to halt its contentious plan to annex occupied West Bank land sought by the Palestinians.
