Trump news at a glance: president to address Congress as new global tariffs take effect

Trump to defend first-year record in lengthy State of the Union speech

For Democrats, the address presents them with their own, albeit smaller, platform to make their case to voters. After the party was mocked for having lawmakers hold up paddle-shaped protest signs when Trump addressed Congress last year, Democratic leaders have changed their approach, deputizing Abigail Spanberger, who was elected governor of Virginia in a landslide last November, to deliver the traditional response to the president’s speech, while the California senator Alex Padilla will give the Spanish-language version.

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Marco Rubio delivers rare briefing to top US lawmakers on Iran amid tensions

Marco Rubio delivered a rare briefing to top US lawmakers on Iran from the White House on Tuesday as Washington deploys its largest force of aircraft and warships to the Middle East since the 2003 buildup to the Iraq war.

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Donald Trump’s new 10% global tariff comes into effect

Donald Trump’s new global tariffs have taken effect at 10%, even though he had threatened a higher rate of 15% last weekend, providing “some relief” for British businesses, according to a lobby group.

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US military leaders including Pete Hegseth, the defense secretary, met with executives from the artificial intelligence firm Anthropic on Tuesday to hash out a dispute over what the government will be able to do with the company’s powerful AI model. Hegseth gave Dario Amodei, the Anthropic CEO, until the end of the day Friday to agree to the department’s terms or face penalties, Axios reported.

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US congressman refuses to resign after allegations of affair with staffer

US congressman Tony Gonzales refused growing calls to resign from his fellow Republicans on Tuesday amid a furore over allegations that he had an affair with a staffer who later died by suicide.

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What else happened today:

• The justice department sued the University of California, Los Angeles on Tuesday, alleging the university created a hostile work environment for Jewish and Israeli faculty and staff after protests against the war on Gaza broke out across campus.

• US Senate Democrats are launching an investigation into whether the Federal Communications Commission (FCC) and the CBS parent company, Paramount, prevented Stephen Colbert, the network’s talkshow host, from broadcasting an interview with the Texas Democratic candidate James Talarico.

• Cancellations and delays of new US datacenters have increased as the artificial intelligence boom runs up against a slate of issues, including supply chain snags, energy shortages and tariff-induced restraints.

• The victorious US Olympic men’s ice hockey team visited the White House on Tuesday, although there were several notable absences.

• Savannah Guthrie’s family has offered up to $1m for information leading to the return of her 84-year-old mother, Nancy, who has been missing since 1 February.