Until now, the US has not had an official language, though over 30 states have made English their official language. Yesterday Trump sighed an executive order that changed that. In many ways this seems a strange issue. Of course English is our language. It is what we speak to strangers and friends (unless you are Mexican or Polish or something). It is what street and highway signs use. It is what newspapers and magazines use (except for the Spanish, French, etc. papers).
It makes sense for it to be the official language in which laws and other official documents are stated. But I have always had somewhat mixed feelings about the issue. While of course it’s English, I always thought it was rather nice and in keeping with our individualist leanings that it was the common language because it is what people chose to use rather than because it was officially proclaimed. But no big deal.