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Joe Biden in Miramar, Florida, on Oct. 13. Photo: Chip Somodevilla/Getty Images

Joe Biden announced on Twitter Wednesday evening that his presidential campaign raised a record $383 million in the month of September, topping the $364.5 million raised in August.

Why it matters: The news comes just 20 days before the election and is believed to be the most-ever raised by a presidential candidate in a single month, likely driven by the first presidential debate.

What they're saying: "Our success has been driven by our grassroots supporters," Jen O'Malley Dillon, Biden's campaign manager, tweeted Thursday.

  • "$203 million came from online donors. We had 1.1 million new donors last month — bringing the total to 5.5 million donors throughout this campaign. And as a result, we have $432 million in the bank."

The big picture: Biden's campaign netted $3.8 million in one hour during the first debate between the former VP and President Trump, a single-hour record for the campaign.

  • Biden also out-raised Trump by $150 million in August after the president announced he brought in $210 million that month.

Go deeper

Updated Jan 12, 2021 - Health

Moderna's COVID-19 vaccine expected to provide immunity for at least 1 year

Photo: Mario Tama via Getty

Moderna's coronavirus vaccine will provide immunity from the disease for at least one year, the biotech company said Monday per Reuters.

Why it matters: Moderna's vaccine is one of two now authorized for emergency use in the U.S., as coronavirus cases surge past 22.5 million nationally and 90.8 million globally.

Drought, record heat wave in West tied to climate change

People on Folsom Lake in Granite Bay, California, U.S., June 16, 2021. Photo: David Paul Morris/Bloomberg via Getty Images

The prolonged and widespread heat wave in the West, along with the region's increasingly severe drought, is a sign of how climate change has already tilted the odds in favor of such extremes, studies show.

Why it matters: The rapidly growing Southwest, in particular, is also the nation's fastest-warming region. The combination of heat and drought could lead to a repeat, or even eclipse, the severity of 2020's wildfire season in California and other states.

Ben Geman, author of Generate
3 hours ago - Energy & Environment

What to watch as infrastructure talks heat up

Illustration: Annelise Capossela/Axios

A mix of Beltway action and extreme weather events have brought the fault lines in infrastructure talks and their planetary stakes into sharper focus.

Catch up fast: Senate Democratic leaders pledged to seek big climate measures in a multitrillion-dollar, Democrats-only package that faces a very narrow political path.