AP File

The Department of Justice opened a criminal probe into Uber's use of software, called "Greyball," to evade law enforcement, Reuters reports, citing anonymous sources.

Last week, Portland's transportation office published a report spotted by Bloomberg revealing an inquiry, but the company has now received a subpoena from a Northern California grand jury for certain documents, according to Reuters. Uber declined to comment.

Greyball: Uber's program, which involves manipulating what particular users see in its app, was uncovered by the New York Times in March, and the company has since said it will no longer use the software for this purpose. Uber has admitted that it used its Greyball technique on 17 rider accounts of mostly government officials in Portland during a two-week period in late 2014, before the city had implemented regulations for ride-hailing.

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SurveyMonkey poll: Young voters' red-state blue wall

Data: SurveyMonkey; Chart: Danielle Alberti/Axios

There are only five states in the U.S. where voters younger than 35 embrace President Trump over Joe Biden, and none are swing states, according to new 50-state SurveyMonkey-Tableau data for Axios.

Why it matters: These scattered red spots in a sea of blue vividly illustrate Trump's peril if young people were to actually turn out this year. Put another way, Trump's path to re-election depends heavily on younger adults staying home.

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Illustration: Aïda Amer/Axios

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U.S. officials: Iran and Russia aim to interfere in election

Iran and Russia have obtained voter registration information that can be used to undermine confidence in the U.S. election system, Director of National Intelligence John Ratcliffe announced at a press conference Wednesday evening.

Why it matters: The revelation comes roughly two weeks before Election Day. Ratcliffe said Iran has sent threatening emails to Democratic voters this week in states across the U.S. and spread videos claiming that people can vote more than once.