These are the headlines you Need2Know:
* **California Wildfire Biggest on Record:**
The Mendocino Complex has grown 80 percent since Friday, burning roughly 283,000 acres in Lake County and destroying 75 homes. Officials said Monday the blaze is only 30 percent contained.
For more on this story, check out the [LA Times](http://www.latimes.com/local/lanow/la-me-ln-california-wildfires-danger-level-20180806-story.html).
* **4 Primaries and 1 Special Election Today:**
Voters cast their ballots Tuesday for primary candidates in Michigan, Kansas, Missouri, and Washington, and will decide who wins the special election for a Columbus, Ohio, House seat. That race could indicate how likely Republicans are to hold off a Democratic challenge for control of Congress. Check out [USA Today](https://www.usatoday.com/story/news/politics/2018/08/03/aug-7-primaries-measure-gop-vulnerability-democratic-tensions/885343002/) for the latest on election results.
* **No Arrests in Chicago After Deadly Weekend:**
More than 70 people were shot, up to a dozen fatally, in a particularly violent weekend in Chicago. Police attributed the violence to gang members, but no arrests have been made. For more, check out the [Chicago Tribune](http://www.chicagotribune.com/news/local/breaking/ct-met-chicago-weekend-violence-20180806-story.html).
* **Paul Manafort's Former Partner Testifies:**
In the trial of President Trump's former campaign chair, Manafort's former protégé Rick Gates testified that he and his partner hid 15 foreign bank accounts from the federal government. Gates pleaded guilty earlier this year to fraud charges and agreed to testify against his former mentor as part of his plea deal. For more, check out the [NY Times](https://www.nytimes.com/2018/08/06/us/politics/rick-gates-manafort-trump-trial.html).
Cheddar's Jill Wagner gets into the latest.
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Former Cisco Systems CEO John Chambers learned all about technology’s volatile highs and lows as a veteran of the internet’s early boom days during the late 1990s and the ensuing meltdown that followed the mania. And now he is seeing potential signs of the cycle repeating with another transformative technology in artificial intelligence. Chambers is trying take some of the lessons he learned while riding a wave that turned Cisco into the world's most valuable company in 2000 before a crash hammered its stock price and apply them as an investor in AI startups. He recently discussed AI's promise and perils during an interview with The Associated Press.
Grove Collaborative’s CEO shares how the company is reinventing everyday goods with sustainability at the core and working toward a plastic-free future.
Atlanta Mayor Andre Dickens shares plans for affordable housing, community-led growth, and why private and public grocery stores could be key to food equity.
Tesla reported a surprise increase in sales in the third quarter as the electric car maker likely benefited from a rush by consumers to take advantage of a $7,500 credit before it expired on Sept. 30. The company reported Thursday that sales in the three months through September rose 7% compared to the same period a year ago. The gain follows two quarters of steep declines as people turned off by CEO Elon Musk’s foray into right-wing politics avoided buying his company’s cars and even protested at some dealerships. Sales rose to 497,099 vehicles, compared with 462,890 in the same period last year.
Tom’s Guide Editor-in-Chief Mark Spoonauer breaks down Apple & Amazon's latest product drops—what's hot, what's hype, and what really matters for users.
InnerPlant CEO Shely Aronov reveals how engineered crops like soybeans and corn emit signals when stressed—offering farmers early warnings to boost yields.
