Zach Gibson/AP

Bloomberg's Sahil Kapur and Billy House have a smart piece about one reason conservative House Republicans think the emerging Obamacare replacement plan is "Obamacare Lite": They don't like the tax credits. The House GOP plan would create "refundable" tax credits to help people buy health insurance, meaning low-income people could get the money even if they didn't owe taxes. That's what the conservatives don't like — they say it could just become another entitlement. "I don't want people getting money back," Rep. Ted Yoho told Bloomberg.

Why it matters: This is all part of Republicans' reckoning with the reality of health care reform: There are different ways to replace Obamacare and still cover uninsured people, but not an infinite number of ways. If the conservative members reject all of them, the GOP could end up with no replacement at all — and then they can't guarantee a smooth transition away from Obamacare.

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14 mins ago - World

Nuclear free-for-all: The arms control era may be ending

Illustration: Aïda Amer/Axios

The mushroom clouds over Hiroshima and Nagasaki have remained unreplicated for 75 years in part because the U.S. and Soviet Union — after peering over the ledge into nuclear armageddon — began to negotiate.

Why it matters: The arms control era that began after the Cuban Missile Crisis may now be coming to a close. The next phase could be a nuclear free-for-all.

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.

2 hours ago - Science

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.