What exactly is the distinction between "weakest against Trump" and "had worse polling margins against Trump?" If you specifically want to dial in on the 'likely to lose' claim that isn't what you were asking for in the comment I replied to.
Except the US Airforce uses it as a gender neutral title, which is extremely relevant when the subtext is you're talking about whether you're misgendering an almost certainly closeted trans person by calling them "airman".
I should have said "as a title used by the airforce" but I figured that was implied.