BOSTON (AP) -- President Barack Obama is expected to call for patience Wednesday in Boston where he will talk about the health insurance overhaul.
He'll also likely talk about the difficulties Massachusetts had when it launched its own insurance reform that is now popular.
In Washington, Health and Human Services Secretary Kathleen Sebelius is expected to be grilled about problems with the health care website.
Meanwhile, opponents of the Affordable Care Act say the estimated 14 million individual policy cancelations being sent by insurers are evidence that health care reform isn't working.
Medicare chief Marilyn Tavenner was hit with complaints about the cancelations at a hearing by Republicans who angrily waved letters from constituents.
Tavenner said insurers, not the administration, are to blame for the notices. But she said consumers will be able to shop on exchanges for polices that are better, and in some cases less expensive. Democrat Sander Levin of Michigan said one of his constituents saved more than $700.
The law requires that all new policies provide more services and better financial protection against catastrophic illnesses. Some states directed insurers to issue cancellations. Large employer plans that cover most workers and their families are unlikely to be affected.
Critics say President Barack Obama should not have said during campaigning that Americans could keep their plans if they like them.