Doctor preparing a vaccine. Photo: Sergei Fadeichev/TASS via Getty Images

Twitter accounts and social media bots operated by Russian trolls intentionally sparked online debates about vaccinations, while also meddling in the 2016 presidential election, according to a study by the American Journal of Public Health.

The details: The bots were in operation from 2014 to 2017, disseminating messages both for and against vaccines with the main purpose of spreading discord, the study says. "Accounts masquerading as legitimate users create false equivalency, eroding public consensus on vaccination."

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Updated 23 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Politics: Chris Christie: Wear a mask "or you may regret it — as I did" — Senate Democrats block vote on McConnell's targeted relief bill.
  2. Economy: Why the stimulus delay isn't a crisis (yet).
  3. Health: The pandemic is getting worse again New York reports most cases since MayMany U.S. coronavirus deaths were avoidable.
  4. Education: Boston and Chicago send students back home for online learning.
  5. World: Spain becomes first nation in Western Europe to exceed 1 million cases — France becomes the second.

Biden says he will appoint commission on Supreme Court reform

Photo: Chip Somodevilla/Getty Images

Joe Biden told CBS' "60 Minutes" this week that if elected, he would put together a bipartisan commission to study the federal court system and make recommendations for reform.

Why it matters: Biden has come under pressure to clarify his position on court packing after some Democrats suggested expanding the court if Senate Republicans confirm President Trump's Supreme Court nominee Amy Coney Barrett.

Dion Rabouin, author of Markets
54 mins ago - Economy & Business

Wall Street still prefers bonds

Illustration: Aïda Amer/Axios. Photo: Sunset Boulevard/Getty Contributor

Investors' return on U.S. corporate bonds has been falling since its August peak, but buying has only accelerated, especially in investment grade bonds that are offering historically low yields.

The state of play: Since hitting its 2020 high on Aug. 4, the benchmark Bloomberg Barclays U.S. bond aggregate has delivered a -2.2% return. (For comparison, the S&P 500 has gained 3.9% during the same time period.)