Despite repeated attempts by conservatives to gut the law, the ACA has expanded health insurance coverage for more than 20 million Americans. Among other provisions, the ACA guarantees that Americans can get health insurance coverage despite pre-existing conditions, bars insurers from charging individuals higher rates based on their health status, and prohibits discrimination in health care based on race, sex, age or disability. The ACA also expanded coverage for preventive services, including contraceptive care, and ensured coverage for maternity care.