In his second year of law school, Eldridge managed then-State Representative Pam Resor’s successful re-election campaign in 1998. During this campaign, he worked on the historic Massachusetts Clean Elections bill, which provided public financing to political candidates willing to accept campaign spending limits and the prohibition of accepting of special interest and large financial contributions. After the bill passed by voter referendum, Jamie was appointed as the Middlesex and Worcester Senate District Coordinator. From 1995 to 1997 he was a paralegal litigation associate with Hale and Dorr (now WilmerHale).