The Obama administration says it's enlisting community health centers in the drive to sign up uninsured people under the new healthcare law. Health and Human Services Secretary Kathleen Sebelius announced Wednesday that more than 1,100 health centers in all 50 states will share $150 million in grants for outreach. It's the largest pot of federal money for in-person enrollment assistance. The centers provide basic primary health care to millions of people, usually in low-income communities. Their clients are also one of the main target groups for President Barack Obama's healthcare law, which is eventually expected to cover 25 million to 30 million uninsured people. Enrollment starts Oct. 1, and benefits kick in Jan. 1. Republicans in Congress are trying to deny funds for carrying out the expansion.