Be Best Day was an initiative of First Lady Melania Trump during the Trump Administration to promote public awareness focusing on youth well being and advocating against cyberbullying and drug use. The drug focus was that of opioids which were widespread prior to the crackdown on physicians who were over prescribing them.
Mrs Trump decided the name of the inititative should go by the name "Be Best" and there was a proclamation signed in the Rose Garden of the White House on May 7, 2018. It is a broad scope dose of positivity for youth but had a slow start due to health problems suffered by the President.
Naturally the left had to attempt to sully this initiative with innuendo and false claims which were unsubstantiated in the usual and customary hate filled vitriol they spew as an activity of daily living along with CNN, their Counterfeit News Network.