Illegal immigrants are already barred from using Medicaid, but the law allows for emergency Medicaid to those who need emergency room care regardless of status.

The immigration agency will use Medicaid data to identify and locate people it believes are in the country unlawfully.

The Trump administration is forging ahead with a plan that is sure to fuel alarm across California's immigrant communities: handing over the personal data of millions of Medicaid recipients to federal immigration officials who seek to track down people living in the U.