Sen. Scott Brown, R-Mass., called on his Democratic opponent, Elizabeth Warren, to release all records related to claims she made during her career as a law professor that she is Native American.

Some are accusing the blond-haired, blue-eyed Warren of identifying herself as a minority to win coveted jobs, including her position as a law professor at Harvard University. At the time she was hired, Harvard had been criticized for its lack of minority faculty and identified her as one of its Native American professors.

Warren initially said she had not called herself Native American but has since disclosed that she listed herself for 11 years as a minority in a law directory used by universities looking to hire professors.

"Her changing stories, contradictions and refusal to answer legitimate questions have cast doubt on her credibility and called into question the diversity practices at Harvard," Brown said in the statement. "The best way to satisfy these questions is for Elizabeth Warren to authorize the release of her law school applications and all personnel files from the various universities where she has taught."

Brown and Warren are fighting one of the closest Senate battles this year and were statistically tied among Bay State voters in the most recent poll.

Warren said she identified herself as Native American to meet people like herself and one genealogist said Warren's great, great, great grandmother was identified as Cherokee, which would make Warren 1/32nd Native American.