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Photo: Xinhua/Ting Shen via Getty Images

President Trump tweeted on Tuesday that any "attack by Iran on anything American will be met with great and overwhelming force."

Why it matters: It's a new red line for Trump in the latest round of heightened tensions with Iran. The president previously called off a military strike in response to the downing of a U.S. drone, claiming the death toll would be disproportionate. His tweet on Tuesday strikes a markedly new tone.

"Iran leadership doesn't understand the words "nice" or "compassion," they never have. Sadly, the thing they do understand is Strength and Power, and the USA is by far the most powerful Military Force in the world, with 1.5 Trillion Dollars invested over the last two years alone. The wonderful Iranian people are suffering, and for no reason at all. Their leadership spends all of its money on Terror, and little on anything else. The U.S. has not forgotten Iran’s use of IED's & EFP's (bombs), which killed 2000 Americans, and wounded many more. Iran's very ignorant and insulting statement, put out today, only shows that they do not understand reality. Any attack by Iran on anything American will be met with great and overwhelming force. In some areas, overwhelming will mean obliteration. No more John Kerry & Obama!"

Context: The U.S. imposed new sanctions against Iran's leadership and Ayatollah Ali Khamenei on Monday. Iran's foreign ministry responded by saying these sanctions have led to the "permanent closure of the path of diplomacy," while President Hassan Rouhani blasted the White House's move as "useless" and indicative of a "mental handicap."

Go deeper... Timeline: How Trump and Tehran came to the brink of war

Go deeper

4 hours ago - Health

Biden says it's "not the time to relax" after touring vaccination site

President Biden speaking after visiting a FEMA Covid-19 vaccination facility in Houston on Feb. 26. Photo: Mandel Ngan/AFP via Getty Images

President Biden said Friday that "it's not the time to relax" coronavirus mitigation efforts and warned that the number of cases and hospitalizations could rise again as new variants of the virus emerge.

Why it matters: Biden, who made the remarks after touring a vaccination site in Houston, echoed CDC director Rochelle Walensky, who said earlier on Friday that while the U.S. has seen a recent drop in cases and hospitalizations, "these declines follow the highest peak we have experienced in the pandemic."

Updated 4 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Health: Most COVID-19 survivors can weather risk of reinfection, study says — "Twindemic" averted as flu reports plummet amid coronavirus crisis
  2. Vaccine: FDA advisory panel endorses J&J COVID vaccine for emergency use — About 20% of U.S. adults have received first vaccine dose, White House says — New data reignites the debate over coronavirus vaccine strategy.
  3. Economy: What's really going on with the labor market.
  4. Local: All adult Minnesotans will likely be eligible for COVID-19 vaccine by summer — Another wealthy Florida community receives special access to COVID-19 vaccine.
  5. Sports: Poll weighs impact of athlete vaccination.

The week markets went wild

Illustration: Lazaro Gamio

The markets just closed out a manic week.

Why it matters: Outsized — and in some cases historic — moves were evident across the board.