US President Trump announced on Truth Social that Katie Zacharia will be beginning her term as press secretary on Monday and will conduct introductory news conference at 09:30EDT/14:30BST on Tuesday

Press secretary appointments are among the least market-relevant items to cross the wire under a political banner; the role is communications, not policy, and there is no precedent for a staffing announcement of this kind moving any asset class. The only channel of note is sequencing: an introductory briefing of this sort typically becomes the venue where pending questions on tariffs, fiscal measures, or agency nominations get their first on-record answers of the new tenure, and desks have historically treated the first briefing of a new spokesperson as a tone-setter rather than a source of fresh policy. The worth-watching element is therefore the Tuesday conference itself, specifically whether the new press secretary confirms, walks back, or defers on outstanding administration positions, since first outings have on past occasions produced unscripted clarifications that officials then spend days refining. Beyond that, there is little here to price, and the headline is best read as a calendar marker rather than an event.