The Trump administration is urging the Federal Reserve to take a more active role in stemming the yen's decline, arguing that the currency's weakness poses a threat to the stability of the US public debt market.
The push places Federal Reserve Chair nominee Kevin Warsh at the center of a high-stakes debate over the boundaries of monetary policy and political influence.
The interventionist stance from the White House comes as the yen continues to face downward pressure, with officials warning that a disorderly move could spill over into US Treasury markets.
The argument suggests that the Fed's traditional mandate of domestic price stability and maximum employment may need to be weighed against broader financial stability concerns linked to global currency flows.
Warsh, who has already sparked debate with his views on monetary policy independence, now faces a direct test of his ability to shield the central bank from political pressure.
His nomination has been closely watched by markets, with investors scrutinizing his past comments for signals on how he might balance institutional autonomy with the administration's policy preferences.