What we can assume is an employee who works in PR at McDonald’s tweeted disdain for President Donald Trump. The Tweet is archived here: https://archive.is/dY1IH
McDonald’s was quick to delete the Tweet and stated that their account was hacked, which could be the case. Personally, I believe it was a rogue employee.
Twitter notified us that our account was compromised. We deleted the tweet, secured our account and are now investigating this.
— McDonald’s (@McDonaldsCorp) March 16, 2017