Twitter announced Tuesday it will make pre-roll ads available on its crowdsourced live video app, Periscope. Like Facebook, Twitter will only run pre-roll ads next to vetted content from select, trustworthy publishers.

Facebook later announced it's adding more Snapchat-like photo and and video features, including a camera button that will let users post video directly to Facebook's app.

Why it matters: Companies are taking advantage of YouTube's ad crisis by rolling out timely video updates. According to Jason Beckerman, the CEO of social intelligence firm Unified, it's a smart pitch.

"Brands are recognizing that programmatic video advertising on the internet is a risky endeavor. It's a safer bet to run video ads in closed ecosystems, like Facebook, Twitter, and Snapchat Discover, where those companies have full control to police their video content."

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Updated 41 mins ago - Politics & Policy

Supreme Court denies Pennsylvania GOP request to limit mail-in voting

Protesters outside Supreme Court. Photo: Daniel Slim/AFP via Getty Images

The Supreme Court on Monday denied a request from Pennsylvania's Republican Party to shorten the deadlines for mail-in ballots in the state. Thanks to the court's 4-4 deadlock, ballots can be counted for several days after Election Day.

Why it matters: It's a major win for Democrats that could decide the fate of thousands of ballots in a crucial swing state that President Trump won in 2016. The court's decision may signal how it would deal with similar election-related litigation in other states.

Microphones will be muted during parts of Thursday's presidential debate

Photos: Jim Watson and Saul Loeb/AFP via Getty Images

The Commission on Presidential Debates adopted new rules on Monday to mute microphones to allow President Trump and Joe Biden two minutes of uninterrupted time per segment during Thursday night's debate, AP reports.

Why it matters: In the September debate, Trump interrupted Biden 71 times, compared with Biden's 22 interruptions of Trump.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Politics: Trump says if Biden's elected, "he'll listen to the scientists"Trump calls Fauci a "disaster" on campaign call.
  2. Health: Coronavirus hospitalizations are on the rise — 8 states set single-day coronavirus case records last week.
  3. States: Wisconsin judge reimposes capacity limit on indoor venues.
  4. Media: Trump attacks CNN as "dumb b*stards" for continuing to cover pandemic.
  5. Business: Consumer confidence surveys show Americans are getting nervousHow China's economy bounced back from coronavirus.
  6. Sports: We've entered the era of limited fan attendance.
  7. Education: Why education technology can’t save remote learning.