While the Fed's rate hike was in line with market expectations, the messaging was slightly more hawkish than many anticipated. Warsh oversaw a unanimous decision to raise the policy rate.
Moreover, 16 of the 18 policymakers submitting a rate projection in the so-called "dot plot" expected at least one more quarter-point hike by the end of 2026. The Fed chair, who is averse to forward guidance, did not submit a projection, though his comments after the release were decidedly hawkish.
The policy statement noted the move would "support a timelier return" to the 2% target rate. Warsh justified the hike by pointing to persistently above-target inflation, as well as recent signs of a strengthening economy.
President Trump - a longtime advocate of easing policy - responded to the move by calling once again for lower interest rates, but he stopped short of criticizing Warsh, a stark contrast from his treatment of Warsh's predecessor Jerome Powell.
There may be more bad news for the president on the rates front. Fed funds futures late on Wednesday indicated a roughly 50% chance of a hike at the central bank's next meeting in October, which would come just before the midterm elections that will decide control of Congress.
But markets appear content with the Fed's decisive move, even if the path forward is still unclear. The 10-year Treasury yield eased below 5% after initially rising slightly following the policy decision, while the 30-year nudged lower but stayed near a recent 19-year high.
Wall Street futures are also pointing higher before the bell on Thursday, after major indexes closed lower on Wednesday.
Attention now turns to the other major central bank decisions due this week, with the Bank of England expected to stand pat today and the Bank of Japan very likely to hike again on Friday.
In energy markets, oil prices extended losses on Thursday after both Brent and WTI settled some 3% lower the day before. Saudi Arabia is offering additional crude cargoes through Oman, according to sources. That's expected to ease at least some of the supply loss from recent attacks on the Kingdom's East-West pipeline.
However, fighting escalated between Saudi Arabia and Yemen's Iran-backed Houthis on Wednesday as they traded further strikes and widened a new front in the Middle East conflict - one that's given Iran a strategic boost. President Trump, meanwhile, says he hopes that an end to the Iran war is near.
Finally, the U.S. House of Representatives on Wednesday passed a sweeping sanctions and tariff bill intended to increase economic pressure on Russia over its invasion of Ukraine. The bill will now be sent to President Trump to sign into law.