Andrea Horwath
She is the first woman to lead the Ontario New Democratic Party , and one of only three women to serve as leader of a political party with representation in the Ontario provincial legislature ( former Ontario Liberal Party leaders Kathleen Wynne and Lyn McLeod are the other two ) . 
<triplet> Kathleen Wynne <subj> Ontario Liberal Party <obj> member of political party <triplet> Lyn McLeod <subj> Ontario Liberal Party <obj> member of political party