Joe Biden in New Hampshire on Tuesday. Photo: Scott Eisen/Getty Images

Watch for Trump allies to begin framing Joe Biden as a free-trading globalist who would undo the president's trade agenda.

Why it matters: Trump will try to direct the conversation with his megaphone, and invite attacks on Biden from the left.

  • Trump allies say that when 2020 candidates to Biden’s left inevitably start hitting him on his free-trade past, Republicans will piggyback to try to undermine him ahead of a potential general election fight in the Rust Belt.
  • Expect them to begin asking questions like: What specifically will Biden do with China? Will he lift President Trump's tariffs? How does Biden defend his past advocacy for NAFTA and the Trans-Pacific Partnership?
  • This could be months away, but it's already a hot topic in Trumpworld.

The backdrop: Team Trump is worried about the former vice president.

  • Internal Trump polls have Biden substantially ahead in the Rust Belt.

The other side: "Trump’s trade war could hit his base of voters most," via CNBC.

Go deeper: Trump’s Biden obsession

Go deeper

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Illustration: Eniola Odetunde/Axios

It'll likely be a long time before children are vaccinated against COVID-19, even though vaccinating kids could eventually play an integral role in reducing the virus' spread.

The big picture: None of the leading contenders in the U.S. are being tested for their effectiveness in children. Even once one of them gains authorization from the Food and Drug Administration, there will only be a limited number of available doses.

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Illustration: Sarah Grillo/Axios

Progressive Democrats want to beat President Trump so badly that they're tabling their apathy about Joe Biden — organizing hard to get him into office, only to fight him once elected.

Why it matters: That's a big difference from 2016, when progressives’ displeasure with Hillary Clinton depressed turnout and helped deliver the White House to Trump.

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Illustration: Aïda Amer/Axios

Foreign and domestic actors looking to influence the 2020 election are trying to trick real reporters into amplifying fake storylines. This tactic differs from 2016, when bad actors used fake accounts and bots to amplify disinformation to the population directly.

Why it matters: The new strategy, reminiscent of spy operations during the Cold War, is much harder for big tech platforms to police and prevent.