The Smell

The both  were odiferous¹.

1. Trump:

“It’s not good. The best way to describe it... take armpits, ketchup, a butt and makeup and put that all in a blender and bottle that as a cologne,” - Adam Kinzinger

"Donald has a distinct smell that doesn't really get enough press. It's like body odor with kind of like a scented, makeup product—you can smell the hair products even outdoors," she said, which caused Mary Trump to cringe." - Kathy Griffin

"“Years ago I posted about Trump being kicked out of Keens Steakhouse in Manhattan , where I was eating with my father in 1983, because his smell was so offensive,” @bestofajack04

2. Hitler:

"It may sound like a Woody Allen scenario, but medical historians are unanimous that Adolf was the victim of uncontrollable flatulence." - The Smart Set, 10/24/2007

"By his own account, since childhood he had suffered recurrent attacks of abdominal colic with alternating diarrhoea and constipation and what he described as "gas, clearly related to episodes of stress or crisis." - Doyle D. Adolf Hitler’s medical care. J R Coll Physicians Edinb. 2005;35(1):75–82.

"Morell [Hitler's personal physician] meanwhile, considered Hitler’s gastrointestinal symptoms to be caused by abnormal bacterial flora of the intestinal tract, and faecal analysis indeed showed intestinal dysbiosis." - Milan Beckers, Berlin Bowel Bothers: Might Adolf Hitler’s Gut Problems Have Been Parkinson-Related? 

"Dr. Erwin Giesing happened to notice six tiny black pills—“Doctor Koester’s Anti-Gas Pills”—sitting on the Führer’s breakfast tray next to his porridge, dry bread, and orange juice." - Uncle John's Bathroom Reader, July 18, 2016, HOW HITLER’S FLATULENCE MAY HAVE HELPED END WWII EARLIER THAN IT OTHERWISE WOULD HAVE

"That's why rich people from Beverly Hills generally speaking don't smell so good."

-Donald Trump