“With High Prices Persisting, Trump Tempers Tone on Slaying Inflation

President Trump pledged to lower costs on “Day 1” as a candidate. His administration now acknowledges it will take more time.”

So, yes, he lied about it.

https://www.nytimes.com/2025/02/12/business/trump-inflation-prices.html?smid=nytcore-ios-share&referringSource=articleShare