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Expand chart
Data: Brennan Center for Justice; Note: The chart reflects primary emergency declarations, not those amending existing emergencies; Chart: Andrew Witherspoon, Chris Canipe/Axios

President Trump's decision Friday to declare a national emergency is the latest in a series of emergencies that are used for international crises or urgent domestic dangers.

Why it matters: Most experts agree that Trump's use of a national emergency is a legally questionable use of emergency powers. The Brennan Center for Justice has found 123 emergency powers the president can invoke. There are one or two powers that Trump could use that are related to military construction.

  • Those emergency construction powers have only been used twice: by George H.W. Bush during the Gulf War and then by George W. Bush after 9/11. Those orders aren't listed in the graphic because they were just amendments to earlier emergency declarations.

The backstory: Over the past 40 years, the National Emergencies Act has become a common tool for U.S. presidents to quickly enact foreign sanctions, especially when their views conflict with Congress. Of the 58 national emergencies in the data, 44 have been foreign sanctions.

Some examples:

Other uses of emergency powers:

  • In response to clashes between U.S. and Cuban vessels, Clinton invoked a power allowing the Transportation Department to better regulate the movement and inspection of ships.
  • During the H1N1 virus outbreak in 2009, Obama allowed the Department of Health and Human Services to modify or waive some Medicare, Medicaid and CHIP requirements to implement emergency plans.
  • To stop the proliferation of weapons of mass destruction, Clinton empowered the Commerce Department to control any exports that could aid countries in producing those weapons.

Go deeper: What's next on the wall showdown

Go deeper

Study: Social media giants failing to remove most antisemitic posts

Facebook CEO Mark Zuckerberg speaking virtually during a March House Energy and Commerce Subcommittees hearing on a laptop computer in Tiskilwa, Illinois. Photo: Daniel Acker/Bloomberg via Getty Images

Five social media giants failed to remove 84% of antisemitic posts in May and June — and Facebook performed the worst despite announcing new rules to tackle the problem, a new report finds.

Driving the news: The Center for Countering Digital Hatred (CCDH) notes in its study that it reported 714 posts containing "anti-Jewish hatred" to Facebook, Twitter, Instagram, Youtube and TikTok — which were collectively viewed 7.3 million times. These "clearly violated" company policies, according to the CCDH.

Ina Fried, author of Login
Updated 2 hours ago - Sports

Transgender weightlifter Laurel Hubbard: "It gets better"

New Zealand weightlifter Laurel Hubbard became the first openly transgender woman to compete in the Olympics. Ina Fried/Axios

Laurel Hubbard, speaking to reporters after becoming the first openly transgender woman to compete in the Olympics, on Tuesday expressed gratitude for the opportunity to compete as an athlete and convince transgender people to work through adversity.

What she's saying: "All I have ever really wanted as an athlete is just to be regarded as an athlete," Hubbard, said in response to a question from Axios. "I suppose the thing I have been so grateful here in Tokyo is just being given those opportunities to just go through life as any other athlete."

Amazon may have violated law in Alabama warehouse vote, NLRB says

The Amazon BHM1 fulfillment center in Bessemer, Alabama. Photo: Patrick T. Fallon/AFP via Getty Images

Amazon warehouse workers in Bessemer, Alabama, should hold a new election to determine whether to unionize with the Retail, Wholesale and Department Store Union, the National Labor Relations Board said in a preliminary finding Monday.

Details: The e-commerce giant may have illegally interfered in a mail-in election tallied in April on whether workers at the plant should unionize, per a statement from an NLRB hearing officer assigned to the case. Amazon said it would appeal any ruling stipulating that a second vote should take place.