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Sen. Rand Paul speaks on Senate Foreign Relations Committee. Photo: Alex Wong/Getty Images

Sen. Rand Paul (R-Ky.) tweeted on Friday that President Trump should have asked for congressional approval before authorizing a drone strike that killed an Iranian military commander and one of the regime's most powerful figures, Qasem Soleimani.

"If we are to go to war w/ Iran the Constitution dictates that we declare war. A war without a Congressional declaration is a recipe for feckless intermittent eruptions of violence w/ no clear mission for our soldiers. Our young men and women in the armed services deserve better."

Why it matters: Paul's disapproval stands in contrast to his usual support of Trump and his policies, including when the president announced in October he would begin removing U.S. troops from Syria.

  • Republican hawks like Sens. Marco Rubio and Tom Cotton have spoken out in favor of Trump's actions.
  • Democratic leaders and 2020 Democratic candidates have unanimously stated that the airstrike was brash and concerning for U.S. foreign relations.

Go deeper:

Go deeper

Updated 5 hours ago - Technology

From Malcolm X to "Free Britney," new media shapes the justice system

Illustration: Shoshana Gordon/Axios

True crime documentaries, podcasts and social media campaigns are bringing new attention to real-world legal proceedings — and are often affecting the outcome.

Why it matters: New media platforms can instantly put a national spotlight on cases that have long been forgotten or buried under red tape.

Updated 8 hours ago - Health

The next big bottleneck in the global vaccination effort

Illustration: Rae Cook/Axios

The world still needs more coronavirus vaccines, but an additional bottleneck has emerged in many low-income countries: They need help getting shots in arms.

Why it matters: Increasing vaccination rates across the world is both a humanitarian necessity and the best way to prevent dangerous new variants from emerging, but it increasingly requires complex problem-solving.

Updated 8 hours ago - Health

COVID-19 Omicron variant cases identified in Europe, U.K.

People wearing masks walk in London on Nov. 25. Photo: Li Ying/Xinhua via Getty Images

Health officials in the United Kingdom, Italy and Germany announced on Saturday that they've detected the first known cases of the new COVID-19 Omicron variant.

Why it matters: The discoveries come as the world scrambles to respond to concerns over the new variant, discovered in South Africa earlier this week.