Well, we have a POTUS who has bragged about using his influence to get the prosecutor fired who was investigating the company who had his son on the BOD, even though his son probably didn't know enough about oil and Gas to fill a thimble. He got into office by stealing a National Election. That's just a warm-up, nowhere near trying to sort out all the decades-entrenched corruption in the Congress, media, and various agencies.
Considering the Ukrainian Government under their current POTUS, who had no history of holding office, has only been going since 2019, I'd venture a guess that Ukraine is actually LESS corrupt than the US.