Illustration: Sarah Grillo/Axios

Global warming has burst into national politics as major Democratic 2020 hopefuls release aggressive plans and the party's voters prioritize the topic.

Where it stands: Several polls show climate change has broken through. This month, a CBS News survey found 78% of Democratic voters in early primary states call the topic "very important," putting it behind only health care.

Quick take: Forces prompting the increased attention from Democratic voters and candidates include...

  • Trump abandoning Obama-era policies.
  • High-profile Democrats led by Rep. Alexandria Ocasio-Cortez promoting the Green New Deal.
  • Heatwaves and scientific reports over the last year warning of the dangers of failing to stem emissions.

What they're saying: Zac McCrary with the Democratic polling firm ALG Research said the voter interest isn't a fad. Instead there's been a "fundamental, foundational shift in voters' attitudes, rather than reacting to any given event or point in time," he said.

  • Voter interest and a record of campaign trail promises could prompt a Democratic president to devote real political capital to tougher policies.
  • But, but, but: Absent unexpectedly large Democratic gains in the Senate or a change to filibuster rules, major legislation faces daunting odds.

What to watch: CNN will host a presidential candidate forum on climate change in September, and MSNBC is a media partner on another event — strong signals of the topic's entry to the national political stage.

Read more about the impacts of climate change we're tracking:

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Coronavirus dashboard

Illustration: Sarah Grillo/Axios

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  2. U.S.: Total confirmed cases as of 12 p.m. ET: 6,681,251 — Total deaths: 197,763 — Total recoveries: 2,540,334 — Total tests: 91,546,598Map.
  3. Politics: Trump vs. his own administration on virus response.
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  5. Business: Unemployment drop-off reverses course 1 million mortgage-holders fall through safety netHow the pandemic has deepened Boeing's 737 MAX crunch.
  6. Education: At least 42% of school employees are vulnerable.
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Sara Nelson, president of the Association of Flight Attendants, during a Sept. 9 protest outside the Capitol. Photo: Alex Wong/Getty Images

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Where it stands: Airline CEOs met Thursday with White House Chief of Staff Mark Meadows, who said President Trump would support an additional $25 billion from Congress to extend the current aid package through next March.

House Democrats ask DOJ watchdog to probe Durham's Trump-Russia investigation

Attorney General Bill Barr. Photo: Kamil Krzaczynsky/AFP via Getty Images

Four Democratic House committee chairs on Friday asked the Justice Department's inspector general to launch an "emergency investigation" into whether Attorney General Bill Barr and U.S. Attorney John Durham, his appointee, are taking actions that could "improperly influence the upcoming presidential election."

Catch up quick: Last year, Barr tapped Durham to conduct a sweeping investigation into the origins of the FBI's 2016 Russia probe, after he and President Trump claimed that it was unjustified and a "hoax."