Trump having fun literally trolling the "evil" in Washington for some "Halloween fun."
"First lady Melania Trump has a laugh as President Trump waves a snake serpent in the direction of the press"
"'Do you know what I'm doing,' he asked as he waved the staff up and down and all around, as if he were casting a spell"
"The first lady, dressed in a yellow plaid coat and her signature stilettos, seemed to particularly like the animal themed costumes.
She patted a little guy dressed as a yellow duck on the head and tugged the ear of a little girl dressed as a white rabbit."
"Children were also able to see the Presidential Limo known as 'The Beast.'"
https://www.dailymail.co.uk/news/article-6327037/Trump-waves-serpent-staff-Melania-pass-chocolate-treats-Halloween.html