Jimmy Kimmel took issue with Melania Trump’s apparent lack of care for tradition in his monologue Tuesday night, taking aim at the former-and-incoming first lady for her apparent plan to ditch an event with outgoing first lady Jill Biden.

Melania Trump does not plan to meet with First Lady Jill Biden at the White House on Wednesday, according to a report. A source familiar with Melania Trump’s decision told the New York Post, “She ain’t going.”