Is It Sinful to Promote a Candidate Wearing Heavy Makeup?

(Questions from a younger sister)

A woman we know is running for office. She told me, “Mahya, you’re clever. I’d love you to promote my classes in art, Quran, and so on.” She gave me lots of promotional materials with her photo on them, but I refused. I told her, “I can’t promote you.” I said, “You’re running for office, not getting married! Your photo in the campaign materials shows you wearing heavy makeup. You’ve already committed a grave sin yourself, and now you want to lead me into sin too. I would be sinning as well if I promoted you in this state.” She was very upset. Teacher, did I say something wrong to her?