how does trump rank? well, he Smells like baby powder and poo:

whats_going_on with trump_and_diaper smells

From Celebrity Apprentice:

"He's [Trump] incontinent from all the speed, all the Adderall he does, the cocaine that he has done for decades. All that stuff has a laxative effect on your bowels and his are uncontrollable.

Casler said that Trump has been wearing 'diapers since probably the 90s'. Adding that they often had to stop the show in order for Trump to change his diaper, Casler said that Keith Schiller's job was to take Trump offset and wipe him down. "Our nickname for Keith was wet wipes." Casler added that Trump does it and he almost sits there unaware of it, and one time he saw Ivanka have to kind of go whisper in his ear and then Keith came and took him offstage.

Trump not cleaning himself when changing out Depends, it is because he wears a hard plastic girdle and he doesn't have the freedom of movement. It's why you see him turn his body from the waist so strangely when standing.He would soil himself often after flying into a rage and cursing out the Script Dept because he couldn’t read a word. One time there was the word 'arbitrage' on a cue card and he freaked out and started screaming that the script department was setting him up then very loudly evacuated his bowels and you could smell it."