Isidro B. Lopez is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 tribal leader who has served as the Vice Chairman of the Tohono O'odham Nation of southern Arizona

Arizona

Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

 since 2007.

During the 2007 Tohono O'odham election, Ned Norris Jr.

Ned Norris Jr.

Ned Norris, Jr. is the current chairman of the Tohono O'odham nation of southern Arizona. He has held the office since 2007. Norris previously worked as the director of marketing and public relations for the O'odham Gaming Authority.-Early life:...

, who was running for chairman, chose Isidro Lopez as his running mate for vice chairman. The combined Norris-Lopez ticket defeated incumbent Chairwoman Vivian Juan-Saunders

Vivian Juan-Saunders

Vivian Juan-Saunders is an American tribal leader who became the first woman to lead the Tohono O'odham nation of southern Arizona in 2003...

, who was seeking a second term in office.

Lopez was sworn in as Vice Chairman of the Tohono O'odham Nation on August 3, 2007.