The Environmental Protection Agency is gearing up to significantly tighten air-pollution regulations for the first time under President Trump.

Driving the news: E&E News, citing three sources, is reporting that the agency will announce tighter tailpipe standards for big trucks on Tuesday. An EPA spokesman didn’t respond to E&E News' request for comment.

One level deeper: Tuesday’s announcement is expected to preview an update to rules that set the standards for nitrogen oxides, a pollutant that contributes to smog and poor air quality, E&E News reports. More details:

  • State and local air agencies petitioned the EPA to tighten these standards for big trucks, including semis, in 2016.
  • These standards haven’t been updated since 2001.

The big picture: The primary focus of the EPA under Trump has been to unravel a series of significant regulations put in place by then-President Barack Obama. In most cases, the agency is either working to repeal those rules or replace them with far less stringent versions. This rule is likely to be the exception, not the new norm.

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Biden: The next president should decide on Ginsburg’s replacement

Joe Biden. Photo: Drew Angerer / Getty Images

Joe Biden is calling for the winner of November's presidential election to select Ruth Bader Ginsburg's replacement on the Supreme Court.

What he's saying: "[L]et me be clear: The voters should pick the president and the president should pick the justice for the Senate to consider," Biden said. "This was the position the Republican Senate took in 2016 when there were almost 10 months to go before the election. That's the position the United States Senate must take today, and the election's only 46 days off.

Trump, McConnell to move fast to replace Ginsburg

Photo: Alex Wong/Getty Images

President Trump will move within days to nominate his third Supreme Court justice in just three-plus short years — and shape the court for literally decades to come, top Republican sources tell Axios.

Driving the news: Senate Majority Leader Mitch McConnell and Senate Republicans are ready to move to confirm Trump's nominee before Election Day, just 46 days away, setting up one of the most consequential periods of our lifetimes, the sources say.

Updated 8 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 10 p.m. ET: 30,393,591 — Total deaths: 950,344— Total recoveries: 20,679,272Map.
  2. U.S.: Total confirmed cases as of 10 p.m. ET: 6,722,699 — Total deaths: 198,484 — Total recoveries: 2,556,465 — Total tests: 92,163,649Map.
  3. Politics: In reversal, CDC again recommends coronavirus testing for asymptomatic people.
  4. Health: Massive USPS face mask operation called off The risks of moving too fast on a vaccine.
  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.