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Sen. Mark Warner (left) walks with a colleague. Photo: Pete Marovich/Getty Images

Top Senate Intelligence Committee Democrat Mark Warner said Thursday he had “some concern” that Twitter had more than doubled the number of users it's notified about being exposed to the Russian election meddling campaign in 2016.

The other coast: Twitter said Wednesday that it notified 1.4 million people via email that they'd been exposed to Russian-linked election-related tweets. It had initially notified 677,775 people that they'd engaged with such content.

“I appreciate that Twitter continues to take steps to address this problem. I have some concern that these numbers continue to grow, but I think it is critical that Twitter — and the other social media platforms — be completely up front with their users about the extent of this attack.”
— Sen. Mark Warner

Why it matters: Warner has hammered Twitter before on its response to the Russia investigation. But Twitter is not alone is increasing the number of users it says were exposed. Late last year, Facebook dramatically increased the number of people it publicly acknowledged had been exposed to Russian accounts and content.

Go deeper

Mike Allen, author of AM
16 mins ago - Politics & Policy

Fauci fires back at Rand Paul for slam on tonight's "Axios on HBO"

Responding to charges by Sen. Rand Paul on Sunday's "Axios on HBO," NIAID director Anthony Fauci told "ABC This Week" that it's "molecularly impossible" for U.S.-funded bat virus research in China to have produced COVID-19.

Why it matters: The issue 0f Wuhan research was reignited on the right last week with a National Institutes of Health letter to Congress disclosing more about the research.

Manchin, Schumer huddle with Biden in Delaware to discuss spending bill

Senate Majority Leader Chuck Schumer (L) and Sen. Joe Manchin (R) at the U.S. Capitol on Nov. 13, 2014. Photo: Win McNamee/Getty Images

Sen. Joe Manchin (D-W.Va.) will meet with President Biden and Senate Majority Leader Charles Schumer (D-N.Y.) on Sunday morning in Delaware as Democrats look to reach an agreement on the massive spending measure.

Driving the news: Democrats are still negotiating what to keep in the bill and how to pay for it, with Biden saying on Thursday that the party does not have the votes to raise the corporate tax rate.

3 hours ago - Technology

Scoop: Facebook exec warns of "more bad headlines"

Illustration: Megan Robinson/Axios

In a post to staffers Saturday obtained by Axios, Facebook VP of global affairs Nick Clegg warned the company that worse coverage could be on the way: “We need to steel ourselves for more bad headlines in the coming days, I’m afraid.”

Catch up quick: Roughly two dozen news outlets had agreed to hold stories based on leaked materials from Facebook whistleblower Frances Haugen for Monday publication — but the embargo fell apart Friday night as participating newsrooms posted a batch of articles ahead of the weekend.