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Sen. John McCain speaks about global warming on Capitol Hill in 2004. Photo: Mark Wilson/Getty Images

The late Sen. John McCain explored and embraced science on global warming and co-authored early versions of cap-and-trade legislation, working across the aisle.

Flashback: Via Bloomberg BNA, "When McCain won the Republican Party’s presidential nomination in 2008 to face off against Obama, it was the first time both candidates for the presidency backed legislation to cap U.S. emissions."

  • The cap-and-trade measures he introduced ultimately failed in 2003 and 2005 (though the 2003 version got 55 votes).

Yes, but: McCain grew less involved with the topic as the years went on.

  • This detailed story from Inside Climate News yesterday points out that he didn't work on efforts to craft a Senate bill in 2010, when the Senate's political window to get a bill across the finish line had opened (though its debatable by how much).
  • He also voted for an unsuccessful measure that year to thwart the Obama administration's regulatory authority over greenhouse gases.

The intrigue: However, in 2017 he cast the decisive vote when the Senate very narrowly rejected a GOP-led move to kill Obama-era regulations to curb methane emissions from oil-and-gas development on public lands.

  • "McCain can be seen on the floor facing off heatedly against a half-dozen GOP senators who surround and block him before he gestures thumbs-down, a foreshadowing of his later decisive vote against the Obamacare repeal," Inside Climate News reports.

Go deeper

Tech scrambles to derail inauguration threats

Illustration: Sarah Grillo/Axios

Tech companies are sharing more information with law enforcement in a frantic effort to prevent violence around the inauguration, after the government was caught flat-footed by the Capitol siege.

Between the lines: Tech knows it will be held accountable for any further violence that turns out to have been planned online if it doesn't act to stop it.

Dave Lawler, author of World
5 hours ago - World

Uganda's election: Museveni declared winner, Wine claims fraud

Wine rejected the official results of the election. Photo: Sumy Sadruni/AFP via Getty

Yoweri Museveni was declared the winner of a sixth presidential term on Saturday, with official results giving him 59% to 35% for Bobi Wine, the singer-turned-opposition leader.

Why it matters: This announcement was predictable, as the election was neither free nor fair and Museveni had no intention of surrendering power after 35 years. But Wine — who posed a strong challenged to Museveni, particularly in urban areas, and was beaten and arrested during the campaign — has said he will present evidence of fraud. The big question is whether he will mobilize mass resistance in the streets.

Off the Rails

Episode 1: A premeditated lie lit the fire

Photo illustration: Sarah Grillo/Axios. Photo: Chip Somodevilla/Getty Images

Beginning on election night 2020 and continuing through his final days in office, Donald Trump unraveled and dragged America with him, to the point that his followers sacked the U.S. Capitol with two weeks left in his term. Axios takes you inside the collapse of a president with a special series.

Episode 1: Trump’s refusal to believe the election results was premeditated. He had heard about the “red mirage” — the likelihood that early vote counts would tip more Republican than the final tallies — and he decided to exploit it.

"Jared, you call the Murdochs! Jason, you call Sammon and Hemmer!”