As per the given executive order, President Trump has declared English as the official language of the United States. The main purpose of this order is to foster unity in the country and create a shared culture among its citizens. It also aims to ensure that all government operations are conducted smoothly and efficiently using one common language. However, it does not prohibit or discourage the use of other languages for communication within the United States.
Read the full text of the order at the whitehouse.gov website.