Zacharia, a 42‑year‑old former senior policy adviser for the Republican National Committee, emerged as a rising voice on Fox News’s Sunday political talk show.
White House spokesperson Sarah Huckabee Sanders confirmed the appointment in a statement, praising Zacharia’s "deep understanding of policy and media dynamics."
The outgoing press secretary, Karine Jean-Pierre, who has served since 2020, will transition to a role focusing on policy outreach, according to a White House statement.
The move follows a series of high‑profile staff changes as the administration seeks to tighten its messaging ahead of the upcoming mid‑term elections.
Zacharia will meet with President Trump on Tuesday to discuss her briefings and communication strategy.