N.Y. Indian Law § 72: The president

§ 72. The president. The president of the Seneca nation shall preside

over the deliberations of the council and shall have only a casting vote

therein. He shall from time to time give to the council information of

the state of the nation, and recommend such measures as he shall judge

necessary and expedient; and shall take care that the laws applicable to

the nation be faithfully executed. He shall have power to convene the

council in extra session as often as, in his judgment, the interests of

the nation require, and to fill all vacancies that may occur therein

until such vacancy be filled by election. In the absence of the

president, the council shall choose from among their own number a

presiding officer, pro tempore.