GREEN BAY, Wis. — President Barack Obama is lowering expectations for immediate wholesale changes to the health care system, even if Congress meets his goal of completing a reform bill this year.

He told people in Wisconsin today it will take a few years to implement every change in any legislation.

Obama said there are some things that can be done quickly. But he said it will take four or five years after a bill is passed to have a whole system set up.

Obama warned that if the country puts off health care reform, "it's never going to happen."