He issued an executive order in 2021 to do just that, among many other things to promote competition. There has definitely been an uptick in antitrust cases since then, and inflation has also decreased significantly.
Except the unfortunate part is that it is always increasing, it's just a derivative, rate of change. But the massive boost from months of heavy inflation is now here permanently, so we're adding 2-3% on TOP of the already-inflated costs. But that's not telling the full story, it is the value of the US dollar going down primarily. Buying power is lower by definition, but because of that, everyone on the bottom end is getting squeezed beyond anything they are ready for and it's going to eventually cause civil unrest on a larger scale.
Then the original comment should have been pedantic about the fact that they're clearly talking about the rate of inflation even though they referred to it simply as "inflation". The rest of us got that.