(CNN) – Geraldine Ferraro has stepped down from her role as a member of Hillary Clinton's finance committee.

In a letter to Clinton obtained by CNN's Suzanne Malveaux — who spoke with the former vice presidential candidate shortly after she sent it to Clinton — Ferraro said she is stepping down so, "I can speak for myself and you can continue to speak for yourself about what is at stake in this campaign."

Full letter:

Dear Hillary –

I am stepping down from your finance committee so I can speak for myself and you can continue to speak for yourself about what is at stake in this campaign.

The Obama campaign is attacking me to hurt you.

I won't let that happen.

Thank you for everything you have done and continue to do to make this a better world for my children and grandchildren.

You have my deep admiration and respect.