I first heard of Kevin de Leon when I saw this video about a decade ago when he was a new CA assemblyman. Shows him ignoring the Star Spangled Banner as it played and then solemnly standing, hand over heart, for the Mexican national anthem.
https://www.youtube.com/watch?v=FgbCB8QlQWw
it’s possible one of the illegals in his family may be him. He is certainly a member ion the reconquista Movement to return the southwest to mexico.