Just out of curiosity...where did you get this "fact"?
I'm guessing it was from the media. Do you believe everything they tell you?
Just out of curiosity... why did you put the word "fact" in quotes, as if I had used it, when I didn't?
To your question, the Alaskan government (politicians from both parties) has actively been seeking to change the name back to Denali since 1975. I've been to Alaska, and everyone there that I spoke with there (admittedly anecdotal) referred to the mountain as Denali. And yes, media reports, both local and national, also indicate that most Alaskans favor and use the name Denali. Indeed, that is what the name of the park is called that contains the mountain.
In the past, the only real opposition to changing the name back has been from Ohio politicians (again, of both parties), because it is McKinley's home state.
I'm guessing the only reason most people oppose the name change is because Obama did it. While I oppose Obama's genuinely bad, and sometimes evil, decisions, he is not evil incarnate, and just because he does something doesn't
necessarily make it wrong. His actions have to be judged individually. This one really isn't a big deal.