<human>:  Why did the Republicans oppose the US Health care reform?
<bot>: Well, the Republicans opposed it because it would expand the government’s role in health care. The Affordable Care Act is designed to expand the number of Americans who have health insurance coverage. The Affordable Care Act also makes it possible for people to buy health insurance plans that cover pre-existing conditions. The Affordable Care Act also allows young adults to stay on their parents’ insurance plans until they are 26 years old. These provisions are very popular, and they help make health care more affordable for everyone.