J. Scott Applewhite / AP

The top Democrat in a congressional investigation of Russia's influence on the election wants more information from Facebook following the social giant's disclosure that thousands of ads focused on divisive issues were likely purchased by a Russian operator between mid-2015 and earlier this year.

"I'd like to get a more comprehensive look than perhaps what we got today," said Mark Warner, the lead Democrat on the Senate Intelligence Committee. "I think today was a good first step, but I think there's more to come."

Why it matters: Warner and others have raised questions about whether digital ad targeting systems were used to distribute "fake news" meant to tilt the results of the election and if Trump campaign could have aided Russian operatives in such an effort. Today shows the pressure isn't letting up on some of the biggest companies in Silicon Valley to account for their role in last year's tumultuous campaign.

Take note: "My hope is that we would even at some point get Facebook, Twitter and some of the other social media firms in for a public hearing," he said, adding that Twitter would be briefing committee staff in the future.

Bigger picture: Warner also said the there should be greater transparency about who is buying political ads online. The companies, he said, have "got to follow the law, and if the law needs to be changed to meet ... 21st century standards, let's have at it."

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A major explosion Beirut, Lebanon has killed at least 100 people and injured over 4,000, according to the Lebanese Red Cross.

Driving the news: Prime Minister Hassan Diab said the explosions occurred at a warehouse that had been storing 2,750 tons of ammonium nitrate for over six years.

Biden confidants see VP choices narrowing to Harris and Rice

Photos: Tom Williams/CQ-Roll Call, Inc via Getty Images; Win McNamee/Getty Images

Confidants of Joe Biden believe his choices for vice president have narrowed to Sen. Kamala Harris and Susan Rice — and would be surprised if he picks anyone else.

The state of play: This is a snapshot of the nearly unanimous read that we get from more than a dozen people close to him.

An election like no other

Illustration: Eniola Odetunde/Axios

The coronavirus will make the 2020 presidential election different from any in modern history: Voting that begins earlier, results that take longer, mail carriers as virtual poll workers and October Surprises that pop in September.

The big picture: Perhaps 80 million Americans will vote early, by mail or in person, Tom Bonier, CEO of TargetSmart, a Democratic political data firm, tells Axios. That's going to set up more of an Election Season than an Election Day — and increase the odds of national turmoil over the vote count.