This letter offers your services to a candidate's campaign as a volunteer.
1234, Main Street
Boston, MA 02123
05 April, 2005
<Recipient Address Goes Here>
I know how much work goes into a political campaign. Since I am planning to support <name> in <his/her> campaign for <office>, I thought it would be a good idea if I volunteered my services.
I have experience in <areas of experience>, and I can spare about <hours per week> a week for the campaign. If you would like to talk further or meet with me, please give me a call at <phone number>.
Thank you for your time. I look forward to working toward <name>'s victory.
encl: <List of enclosed items goes here>