Determined that a new Massachusetts health insurance measure not raise taxes or resemble the previous decade's failed "Hillarycare" proposal at the federal level, Romney formed a team of consultants from diverse political backgrounds to apply those principles. Beginning in late 2004, they devised a set of proposals that were more ambitious than an incremental one from the Massachusetts Senate and more acceptable to him than one from the Massachusetts House of Representatives that incorporated a new payroll tax. In particular, Romney pushed for incorporating an individual mandate at the state level. Past rival Ted Kennedy, who had made universal health coverage his life's work and who, over time, had developed a warm relationship with Romney, gave the plan a positive reception, which encouraged Democratic legislators to cooperate. The effort eventually gained the support of all major stakeholders within the state, and Romney helped break a logjam between rival Democratic leaders in the legislature.