The Senate Judiciary Committee in Washington has approved six nominees to fill judicial vacancies in Arizona.

One of the nominees — Diane Humetewa — is poised to become the first American Indian woman to serve on the federal bench.

Humetewa and the other nominees appeared before the Judiciary Committee in January.

She's a former U.S. Attorney for Arizona and currently a lawyer for Arizona State University, serving as a special adviser to the school president for American Indian Affairs.

Humetewa is an ASU graduate, a native Arizonan and a Hopi tribe member.

The longest-pending nominee in the Judiciary Committee who was first nominated in June 2011 — Rosemary Marquez — also was approved Thursday.

She's a former assistant federal public defender and ex-Pima County prosecutor and county public defender.