(CNN) - Geraldine Ferraro, the outspoken former Democratic vice presidential candidate and a supporter of Hillary Clinton's White House bid, told the New York Times she may not vote for Barack Obama should he be the party's nominee.
Ferraro, a former member of Clinton's finance committee who resigned that post earlier this year after making comments many viewed as racially offensive, also said she thinks the Illinois senator has been "terribly sexist" over the course of the presidential campaign.
The comments appear to underscore the potential difficulty Obama may have courting some women voters in the fall - many of whom have said they feel a solidarity with the New York senator over the barriers Clinton faces in her bid to become the first female president.
Ferraro has not shied away from discussing the impact of race and gender throughout the Democratic presidential campaign. In March, the former congresswoman told a California newspaper the chief reason Obama's candidacy was successful was because he was black.
"If Obama was a white man, he would not be in this position," she told The Daily Breeze. "And if he was a woman, he would not be in this position. He happens to be very lucky to be who he is. And the country is caught up in the concept."
Ferraro also said Clinton had been the victim of a "sexist media."
Obama later called those comments "ridiculous," and Clinton said she disagreed with them.
Ferraro maintained her comments were not racist, but ultimately resigned from the Clinton campaign after they caused an uproar.
"The Obama campaign is attacking me to hurt you. I won't let that happen," she wrote in her resignation letter to Clinton, adding, "I am who I am and I will continue to speak up."