I guess this could be politics, since they're attacking Trump, and to be fair, our side attacked Obama for "corpse man", and probably all past Presidents are attacked for minor stuff like this.
Note that I read the story on my phone, but on my computer it requires I disable the ad blocker, so if you don't want to do that, the gist of it is:
Yosemite: Some of my German relatives have used "YOseMIGHT", but most Americans I have heard call it, correctly, "YOsehmity".
Nevada: From living in the West all my life, "nehVADah" has always been correct, but I have heard plenty of people call it "nehVAHda".
Oregon: Now, though I have always lived in a border state to it, I think I pronounce it correctly, but I will defer to the Oregon dwellers here. I have heard "orahGONE" from East coasters. USA Today claims the correct way is "ORuhgin". I have always said it "ORuhgun", and have always heard others regionally call it that. To be fair, it sounds like more of a blending of "gun" and "gin" on the last syllable.
Anyway, pronouncing place names is interesting to me right now because I'm still learning (and being corrected on!) the proper pronunciation of many Idaho place names.
https://www.usatoday.com/story/news/politics/2020/08/04/trump-mispronounces-yosemite-white-house-event/3289122001/