Why was Lady Gaga dressed as a nazi? pic.twitter.com/q99syEN7fj— Maria (@CupidDelux) November 8, 2016
... should not be viewed as a Nazi look is: "the jacket was actually the same one that Michael Jackson wore when he visited the White House, which is a nice tribute to the late pop icon."
You still need a reason for deciding to pay a tribute to Michael Jackson at a Hillary rally. If a celebrity at a Trump rally had dressed like that and then — after it's perceived as a Nazi look and tweeted about furiously — sought refuge in the Michael Jackson provenance, not only would the excuse be rejected — it looks Nazi and you wanted that look — but the sins of Michael Jackson would be loaded on top.
And why did Michael Jackson wear that jacket? There have been stories published saying that Michael Jackson was fascinated by Nazis:
It turns out that Jackson had a huge collection of Nazi movies and documentaries that he displayed on the walls at his Neverland ranch. Norman Scherer, the videotape distributor who procured the rare videos, said he assumed that Jackson just loved the military garb and lockstep marching – a perfectly normal assumption when someone reveals to you that they’re obsessed with Nazis.So that's another reason why tracing Gaga's jacket to Jackson fails to break the Nazi association. I don't know what Jackson meant to be doing with his military get-up and why he loved Nazi imagery (if he did), but saying the jacket was Jackson's doesn't make it not a Nazi jacket.
The reason Lady Gaga will get away with dressing like that isn't because the jacket's Jackson's, but because she came out for Hillary Clinton and not Donald Trump.