@evan I think your point is a good one, but this example is untrue. The current President notably does use an American social network (which he owns personally) for his announcements; I'd say to an unhealthy degree. The previous presidents who served while social media existed also used American social networks extensively; particularly for campaigning, but also as a part of their announcement strategy.
Anyway, just a note. I think your argument is good, but this example doesn't support it.