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The U.S. officially pulled out of the Cold War-era Intermediate Nuclear Forces (INF) agreement with Russia on Friday, saying "Russia is solely responsible for the treaty's demise."

Why it matters: Some are worried the failure of the treaty could lead to a renewed arms race between the two countries. Both the Obama and Trump administrations have accused Russia of repeatedly violating the terms of the treaty, and neither country was able to ratchet down tensions during the six-month period after the U.S. announced its intention to withdraw.

  • The INF banned nuclear and conventional ground-launched missiles with ranges of 500 to 5,500 kilometers
  • Beyond allegations of Russian noncompliance, the U.S. viewed the treaty as unfair because other geopolitical rivals, like China, were not constrained by its limits.

What's next: The U.S. already has plans in place to start testing new a weapon in the coming weeks, reports Politico.

Go deeper: U.S. exit from INF Treaty frees Russia from key nuclear constraints

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Trump refuses to answer question on whether he supports QAnon conspiracy theory

President Trump on Friday refused to answer a direct question on whether or not he supports the QAnon conspiracy theory during a press briefing.

Why it matters: Trump congratulated Georgia Republican Marjorie Taylor Greene, who vocally supports the conspiracy theory, on her victory in a House primary runoff earlier this week — illustrating how the once-fringe conspiracy theory has gained ground within his party.

Postal workers' union endorses Biden

Photo: Drew Angerer/Getty Images

The National Association of Letter Carriers, the union representing roughly 300,000 current and former postal workers, on Friday endorsed Joe Biden in the 2020 presidential election, calling him "a fierce ally and defender of the U.S. Postal Service," reports NBC News.

Why it matters: The endorsement comes as President Trump has vowed to block additional funding for the USPS in the next coronavirus stimulus package, linking it to his continued baseless claims that increased mail-in voting will lead to widespread voter fraud.

Lawmakers demand answers from World Bank on Xinjiang loan

Illustration: Sarah Grillo/Axios

U.S. lawmakers are demanding answers from the World Bank about its continued operation of a $50 million loan program in Xinjiang, following Axios reporting on the loans.

Why it matters: The Chinese government is currently waging a campaign of cultural and demographic genocide against ethnic minorities in Xinjiang, in northwest China. The lawmakers contend that the recipients of the loans may be complicit in that repression.