Johnson & Johnson vaccine effective against COVID-19 variants l GMA.

Johnson & Johnson vaccine effective against COVID-19 variants l GMA.

New data shows that the single-dose inoculation, which could get FDA emergency use authorization by Friday night, may be 100% effective at preventing hospitalization and death from the virus.

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What the latest Johnson & Johnson COVID vaccine data really means: abcn.ws/3aV2uLY

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Supreme Court weighs decision on Idaho abortion ban.

Supreme Court weighs decision on Idaho abortion ban.

Senior Washington correspondent Devin Dwyer gives the latest on the case before the high court. Subscribe to ABC News on YouTube: Watch 24/7 coverage of breaking news and live events on ABC News Live: Watch full episodes of World News Tonight with...

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Biden marks political victory with $95 billion foreign aid package.

Biden marks political victory with $95 billion foreign aid package.

ABC News correspondents' Asma Khalid and Mick Mulroy break down the foreign aid package and what it means for U.S. allies. Subscribe to ABC News on YouTube: Watch 24/7 coverage of breaking news and live events on ABC News Live: Watch full episodes...

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House Speaker Mike Johnson plans to visit Columbia University protesters.

House Speaker Mike Johnson plans to visit Columbia University protesters.

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New video of American hostage in Gaza released by Hamas.

New video of American hostage in Gaza released by Hamas.

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Millions of people are under severe weather and tornado threat.

Millions of people are under severe weather and tornado threat.

At least 10 states anticipate damaging winds, large hail, and strong tornadoes. Subscribe to ABC News on YouTube: Watch 24/7 coverage of breaking news and live events on ABC News Live: Watch full episodes of World News Tonight with David Muir here...

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