Think tanks are the last refuge of a party out of power. So the Republican National Committee is spinning off a tax-exempt institute to work on issues including health care, the environment, job creation, regulation, and defense. The goal of the new National Policy Forum is to promote consensus GOP positions. Initial funding comes from a loan from the RNC, but the new group plans to raise $4 million from corporations, trade associations, and foundations. Party Chairman Haley Barbour says the new organization does not plan to release the names of its donors.