What is the main idea of ObamaCare?

The main idea of ObamaCare, officially known as the Affordable Care Act (ACA), is to increase access to health insurance for Americans, improve the quality of healthcare, and reduce healthcare costs. It aims to expand Medicaid, create health insurance marketplaces, and implement regulations to protect consumers, such as prohibiting denial of coverage due to pre-existing conditions. The ACA also emphasizes preventive care and aims to reduce the number of uninsured individuals in the United States.