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Symone Sanders. Photo: Leon Bennett/WireImage

Former Vice President Joe Biden has hired Symone Sanders, a political strategist and the former press secretary for Bernie Sanders' 2016 presidential campaign, as a senior adviser, AP reports.

Why it matters: Sanders, a well-known CNN political analyst who left Bernie's campaign in June 2016, has been highly sought after by several 2020 campaigns and signed on with Biden's campaign after a meeting a few weeks ago, according to AP. Her voice will add diversity to a crew of top advisers largely dominated by older, white men, AP notes.

Go deeper: Everything you need to know about 2020 candidate Joe Biden

Go deeper

How the Delta variant ups the stakes in the war against COVID

Illustration: Shoshana Gordon/Axios

The dominant Delta variant's ability to efficiently infect people and rapidly grow inside a person is enabling the coronavirus to regain its footing in the United States.

Why it matters: "The solution is right in front of us — get everybody vaccinated and we wouldn't even be talking about this," NIAID director Anthony Fauci tells Axios.

Apple debuts plan to detect images of child sexual abuse

Illustration: Aïda Amer/Axios

Apple announced new iPhone features Thursday that it said would enable the detection and reporting of illegal images of child sexual abuse while preserving users' privacy.

Driving the news: One new system will use cryptographic hashes to identify illegal images that users are uploading to Apple's iCloud without Apple directly snooping in users' troves of photos, which can be encrypted.

California wildfire explodes in size, destroys historic town

Battalion Chief Sergio Mora looks on as the Dixie fire burns through downtown Greenville, Calif. on Aug. 4, 2021. Photo: Josh EdelsonAFP via Getty Images

The small Sierra town of Greenville, Calif., was heavily damaged on Wednesday night into early Thursday as the Dixie Fire surged northward amid high winds, extremely dry air and hot temperatures.

The big picture: The Dixie Fire, California's biggest blaze and the sixth-largest wildfire in state history, razed houses and businesses as it ripped through Greenville and surrounding areas in Plumas County.