The companies may challenge this executive order on the basis that the speech made by the social media users are incite-ful and promote violence.
This is one of the powers that the president of the United States has as the one in charge of the nation.
This order is a directive from The President that the social media giants are not able to stop people from posting what they want.
Read more on executive order here:
https://brainly.com/question/496263
#SPJ12