Lewis is a former Baltimore and Montgomery County school teacher, and was also a professional opera singer with the Washington National Opera and the Baltimore Opera Company.
She teaches in a program she created called "So This is Opera!," traveling to schools along the East Coast for one-week immersion programs for children. Lewis has also written four operas for preschoolers.
Lewis was the party's first female vice chair, and she moved into the role of acting chair following the sudden departure of the previous chair: Maryland Governor Martin O'Malley's brother, Peter O'Malley. Peter O'Malley just took job as chief of staff to Baltimore Mayor Stephanie Rawlings-Blake.
Governor O'Malley has urged the party's executive committee to confirm Lewis as party chairwoman when they meet later this year.