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Sen. Amy Klobuchar announces her 2020 run. Photo: Stephen Maturen/Getty Images

Sen. Amy Klobuchar (D-Minn.) jumped into the White House race yesterday, and her speech's climate lines are worth breaking down:

"The people are on our side when it comes to climate change. Why? Because like you and I, they believe in science. That's why in the first 100 days of my administration, I will reinstate the clean power rules and the gas mileage standards and put forth sweeping legislation to invest in green jobs and infrastructure. And on day one, we will rejoin the international climate agreement."

Quick take: Maybe I'm reading too much into it, but it can be viewed as a mix of ambition and an implicit nod to the daunting legislative hurdles in front of moving a big bill.

  • Reinstating former President Obama's Clean Power Plan is hardly the most ambitious goal in the world — that rule would have largely provided a regulatory backstop for trends already apparent in the power sector.
  • Reinstating the auto mileage rules would be a return to what was already on the books before Trump-era rollbacks began. Ditto for recommitting to the Paris agreement, which President Trump plans to abandon.

But, but, but: Klobuchar is among the Senate sponsors of the Green New Deal resolution, so there's one template for the "sweeping legislation" she mentions.

  • But it's extraordinarily unlikely that Democrats will have a filibuster-proof majority in the Senate even if they retake the chamber in 2020, so big legislation is a long shot.

The big picture: Climate change is playing an improbably large role in the early 2020 jockeying. The latest example came yesterday evening, when Trump inaccurately suggested (again) that cold weather somehow disproves climate change.

  • Trump mocked Klobuchar on Twitter for "talking proudly of fighting global warming while standing in a virtual blizzard of snow, ice and freezing temperatures."
  • "Science is on my side, @realDonaldTrump. Looking forward to debating you about climate change (and many other issues)," Klobuchar responded, also on Twitter.

Go deeper: The Green New Deal is getting a boost from 2020 hopefuls

Go deeper

Massachusetts Gov. Charlie Baker will not seek re-election in 2022

Massachusetts Gov. Charlie Baker (R) speaking during a press conference in November 2021. Photo: Jonathan Wiggs/The Boston Globe via Getty Images

Massachusetts Gov. Charlie Baker (R), a moderate who typically ranks as one of the nation's most popular governors, said Wednesday that he and Lt. Gov. Karyn Polito (R) will not seek third terms in 2022.

Why it matters: The decision leaves the gubernatorial race wide open and will likely affect multiple down-ballot races next year. Baker was expected to be the front-runner had he joined the race.

2 hours ago - Health

CDC prepares tougher testing rules for international travelers

Travelers with their luggage arrive at a COVID-19 testing location at the airport in Los Angeles, Calif., on Nov. 23, 2021. Photo: Frederic J. Brown/AFP via Getty Images

The Centers for Disease Control and Prevention said Tuesday night that it is working to impose stricter testing requirements for international travelers due to the spread of the new Omicron variant.

The big picture: The new rules would require all international travelers, regardless of vaccination status, to show a negative test taken a day before their flight to the U.S. Currently, the CDC says fully vaccinated travelers are allowed to show a test taken no more than three days before their departure, AP reports.

Republicans threaten to shut down government over vaccine mandates

Sen. Mike Lee (R-Utah) in the Capitol in November 2020. Photo: Joshua Roberts/Getty Images

Conservative Republicans in the House and Senate are planning to force a government shutdown Friday to deny funding needed to enforce the Biden administration's vaccine mandates on the private sector, according to Politico.

Why it matters: Congress has until the end of the week to pass a stopgap measure to extend funding into 2022, though objection from a small group of Republicans could shut down the government.