WASHINGTON (AP) - President Barack Obama says undocumented workers should not be included in the health-care overhaul plan he's trying to push through Congress.

He tells Univision's "Al Punto" show that if undocumented immigrants want to buy insurance, that's a matter to be settled with insurance companies. But he does not think they should be able to participate in insurance exchanges set up under the new health-care plan.

He says children of legal residents should have access to health care.

The president also says that overhauling immigration policy will be hard, "but I think we can get it done." He's not giving a timetable, though.