Illustration: Sarah Grillo/Axios

A recently formed bipartisan Senate group that's working on climate change is adding new members.

Driving the news: The Climate Solutions Caucus said yesterday that Republicans Marco Rubio and Susan Collins are joining, and so are Democrats Debbie Stabenow and Tammy Baldwin.

  • The Washington Examiner reports that Ohio Republican Rob Portman plans to join, too.

Catch up fast: Delaware Democrat Chris Coons and Indiana Republican Mike Braun formed the group late last year.

  • Other members are Democrats Jeanne Shaheen and Michael Bennet, Republicans Mitt Romney and Lindsey Graham, and Angus King, an independent who caucuses with Democrats.

Why it matters: It's the latest sign of more Republicans becoming interested in climate at some level.

Reality check: Informal caucuses don't typically have much influence on Capitol Hill, and it remains to be seen whether this one can help move legislation going forward.

Go deeper: Bipartisan House duo explore "clean energy standard"

Go deeper

Pelosi, Schumer demand postmaster general reverse USPS cuts ahead of election

Schumer and Pelosi. Photo: Alex Wong/Getty Images

House Speaker Nancy Pelosi (D-Calif.) and Senate Minority Leader Chuck Schumer sent a letter to Postmaster General Louis DeJoy on Thursday calling for the recent Trump appointee to reverse operational changes to the U.S. Postal Service that "threaten the timely delivery of mail" ahead of the 2020 election.

Why it matters: U.S. mail and election infrastructure are facing a test like no other this November, with a record-breaking number of mail-in ballots expected as Americans attempt to vote in the midst of a pandemic.

CRISPR co-discoverer on the gene editor's pandemic push

Photo illustration: Aïda Amer/Axios. Photos: Brian Ach/Getty Images for Wired and BSIP/UIG via Getty Images

The coronavirus pandemic is accelerating the development of CRISPR-based tests for detecting disease — and highlighting how gene-editing tools might one day fight pandemics, one of its discoverers, Jennifer Doudna, tells Axios.

Why it matters: Testing shortages and backlogs underscore a need for improved mass testing for COVID-19. Diagnostic tests based on CRISPR — which Doudna and colleagues identified in 2012, ushering in the "CRISPR revolution" in genome editing — are being developed for dengue, Zika and other diseases, but a global pandemic is a proving ground for these tools that hold promise for speed and lower costs.

Updated 1 hour ago - Politics & Policy

Coronavirus dashboard

Illustration: Eniola Odetunde/Axios

  1. Global: Total confirmed cases as of 5 p.m. ET: 18,912,947 — Total deaths: 710,318— Total recoveries — 11,403,473Map.
  2. U.S.: Total confirmed cases as of 5 p.m. ET: 4,867,916 — Total deaths: 159,841 — Total recoveries: 1,577,851 — Total tests: 58,920,975Map.
  3. Politics: Pelosi rips GOP over stimulus negotiations: "Perhaps you mistook them for somebody who gives a damn" — Ohio Gov. Mike DeWine tests positive.
  4. Public health: Majority of Americans say states reopened too quicklyFauci says task force will examine aerosolized spread.
  5. Business: The health care sector imploded in Q2More farmers are declaring bankruptcyJuly's jobs report could be an inflection point for the recovery.
  6. Sports: Where college football's biggest conferences stand on playing.