While the president didn't wear a costume, Dr. Biden dressed as the couple's beloved cat, Willow Virginia Chamlee is a Politics Writer at PEOPLE. She has been working at PEOPLE for three years.

Want a fun twist on the cat lady ghost from Beetlejuice Beetlejuice ... We’re finishing off our list of Beetlejuice costumes ...

The cat loves playing dress-up so much, he even brings Park the costumes and helps put them ... with Wife Betsy in Newly Released Bodycam Video Couple Shares Viral Nighttime Routine for Their ...