A former insider has accused Donald Trump’s Federal Reserve chair nominee, Kevin Warsh, of using misleading methods to present inflation data in a more favorable light.

The controversy stems from Warsh’s reported support for adopting a “trimmed mean” inflation measure instead of the widely used core Personal Consumption Expenditures (PCE) index.

According to reporting cited in the article, the trimmed mean approach excludes extreme price movements, resulting in a lower inflation reading—about 2.3 percent compared to the 3.3 percent shown by core PCE over the past year.

Critics, including former Georgia congresswoman Marjorie Taylor Greene, argue that this shift in measurement would obscure the real cost pressures faced by consumers, particularly in essential categories like food and energy.

Greene characterized the proposed change as similar to “common core” math, implying it manipulates data presentation to reach a politically convenient outcome.She suggested that such adjustments could be used to justify lowering interest rates while downplaying the financial strain on ordinary Americans.The dispute highlights broader tensions over how inflation is measured and interpreted in U.S.economic policy.

While supporters of trimmed mean inflation argue it provides a clearer view of underlying price trends by filtering volatility, opponents claim it risks minimizing the impact of everyday expenses.

The debate is unfolding amid ongoing political pressure on the Federal Reserve to reduce interest rates, with President Trump previously clashing with Fed leadership over monetary policy decisions.