(FILES) Chair of the Federal Reserve Kevin Warsh speaks during a news conference at the William McChesney Martin Jr. Federal Reserve Board Building in Washington, DC, on July 29, 2026. US Federal Reserve Chair Kevin Warsh will have to soothe investors frazzled by his cryptic communication style in a key speech on August 28, analysts say, or risk having his leadership undercut by other policymakers filling the void. (Photo by Brendan SMIALOWSKI / AFP via Getty Images)