Tina Abrams had served on the Senecas’ governing council since 2001. Tina Abrams was elected president of the Seneca Nation of Indians on Tuesday, becoming the first woman to be chosen as chief executive in the modern history of the largest tribe. The Seneca Nation witnessed history Tuesday, with the election of Tina Abrams, a voice of leadership within the Nation for decades and an elected member of the Seneca Nation Council.