The news conference in the Oval Office is scheduled for 10am Washington time, Trump said in a Truth Social post, though didn’t elaborate on which country he was referencing.

Trump has faced political pressure to find an off-ramp from his plan to raise US tariffs to their highest level in a century, as polls show Americans souring on his economic stewardship. S&P 500 futures rose as much as 0.5% after Trump’s post.

Details of the announcement were not immediately made clear, but Trump signalled it would be the first of many as he looks to topple barriers to US exports and calm market turmoil driven by the sweeping scope of his tariffs.

Any agreement would come with significant caveats. Full-scale trade pacts typically take years to negotiate, and talks with several nations have centred around, at best, a top-line deal on commitments and intentions that may leave many details traditionally included in comprehensive trade agreements to be negotiated later.