First Thing: US-Iran ceasefire at risk after exchange of fire in strait of Hormuz

Donald Trump insists ceasefire remains intact after the most serious test yet. Plus, David Attenborough’s 100 most spectacular moments

Good morning.

The US and Iran traded fire late on Thursday in the greatest test so far to their month-long ceasefire. Tehran accused Washington of breaching the truce by targeting two ships in the strait of Hormuz and attacking civilian areas, while the US said it struck in retaliation.

Where were negotiations up to before the strikes? There were reports the two sides could be nearing an agreement to halt the war, with a one-page memorandum shared between Washington and Tehran, via Pakistan. Here is a rundown of the ins and outs over the past week.

What happened to Trump’s “Project Freedom”? The US plan to guide tankers through the strait of Hormuz was ditched just days after it was launched, apparently because Saudi Arabia refused to let the US use its bases and airspace to carry out the operation.

Follow our liveblog for the latest developments.

How has the redistricting affected the sway of Black voters? Each now contains a third of the city’s Black voters, which means all nine of Tennessee’s congressional districts now lean Republican.

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