He overstepped. This is the same crap that the Dems used about George Bush- that he only flew a jet (and not in Vietnam like Mc).
As a USN lifer, anyone who straps themselves into a military jet is a hero to me. On my Westpac deployments (destroyer and cruiser) we lost several pilots in supposed peacetime, much less over Vietnam.
I disagree with Mc on most everything and Trump has many good points, but, as noted, Trump lost it for me. There are better men and women than him running.