My best result so far is 23 votes. I had barely any Emotion apart from like 10 allure from snake, but maxed out Interaction and relied on etiquette+rhetorics for checks. No blackmail and no insulting/menacing anyone, having 0 menace helped with that since it seems it sometimes triggers automatically otherwise. This resulted in zero assassination attempts and by the end all electors apart from Lukomir felt positive about Zorana although not everyone voted for her. This is now my go-to formula, Interaction plus different skils each time to do different quests for votes (they're fun to do!). Although I might try a run with high Emotions/ Menace just out of curiosity, maybe I'll finally get an assasin :D