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President Trump is set to unveil what the White House is calling the largest steel plant in U.S. history — a $15 billion Iowa facility from Mesabi Metallics that Republicans are casting as proof the president's tariff strategy is paying off, roughly five weeks before the midterms.

Why it matters: The $15 billion investment is the centerpiece of a two-state, nearly $18 billion buildout that the White House projects will generate about $95 billion in economic activity between construction and the plant's first decade of operation — and Trump is framing it as vindication for the 50% tariffs he's imposed on imported steel and aluminum.

Driving the news:

  • Trump plans to announce the project from the Oval Office at 2 p.m. ET today, joined by Commerce Secretary Howard Lutnick, Mesabi Metallics CEO Joe Broking and Chairman Rewant Ruia, per the Washington Examiner.

  • The Iowa plant will run on iron ore from Mesabi's companion mining operation on Minnesota's Iron Range, tying the project into a two-state supply chain rather than a stand-alone factory.

  • The announcement lands about five weeks before the midterms in a state Republicans are defending, with the White House leaning on the deal as evidence its trade policy is reshoring manufacturing.

By the numbers:

  • $15 billion — investment in the Iowa steel plant alone; nearly $18 billion combined with the Minnesota mine.

  • $95 billion — the White House's estimate of total economic activity from construction through the plant's first decade.

  • 1,750 — permanent jobs projected at the Iowa facility, plus 350 more at the Minnesota mine.

  • 5,000–6,000 — construction jobs expected during the project's first phase.

  • 7.5 million tons — the plant's initial annual steel output, scaling to 10 million tons, or roughly a tenth of total U.S. steel production.

  • 50% — the tariff rate Trump has set on imported steel and aluminum, which the White House credits for driving the investment.

What's next:

  • Trump's Oval Office announcement is scheduled for 2 p.m. ET today.

  • Despite today's rollout, first steel production isn't expected until 2030 at the earliest — meaning the political payoff arrives years before the plant does.

The bottom line: A $15 billion bet on American steel gives Trump a concrete talking point on trade policy heading into the midterms, even though voters won't see a ton of steel out of it for years.

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