COST: Unknown.

HOW'S IT PAID FOR: No new taxes are proposed, but Republicans say they want to reduce Medicare and Medicaid fraud.

REQUIREMENTS FOR INDIVIDUALS: No mandates.

REQUIREMENTS FOR EMPLOYERS: No mandates; small business tax credits are offered. Employers are encouraged to move to "opt-out" rather than "opt-in" rules for offering health coverage.

SUBSIDIES: Tax credits are offered to "low- and modest-income" Americans. People who aren't covered through their employers but buy their own insurance are allowed to take a tax deduction. Low-income retirees younger than 65 (the eligibility age for Medicare) would be offered assistance.

BENEFIT PACKAGE: Insurers would have to allow children to stay on their parents' plan through age 25.

GOVERNMENT-RUN PLAN: No public plan.

HOW YOU CHOOSE YOUR HEALTH INSURANCE: No new purchasing exchange or marketplace is proposed. Health savings accounts and flexible spending plans would be strengthened.

CHANGES TO MEDICAID: People eligible for Medicaid would be allowed to use the value of their benefit to purchase a private plan if they prefer.

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OBAMA CAMPAIGN PROPOSAL

WHO'S COVERED: All children and many now-uninsured adults.

COST: Estimates as high as $1.6 trillion over 10 years.

HOW'S IT PAID FOR: Obama proposed cuts within the health care system and raising taxes on households making more than $250,000 annually.

REQUIREMENTS FOR INDIVIDUALS: Unlike his Democratic primary opponent Hillary Rodham Clinton, Obama did not propose an "individual mandate." Instead he would have required all children to be insured, making it the parents' responsibility.

REQUIREMENTS FOR EMPLOYERS: Large employers would have been required to cover their employees or contribute to the costs of a new government-run plan.

SUBSIDIES: Obama proposed giving subsidies to low-income people but didn't detail at what level.

BENEFIT PACKAGE: Insurers participating in a new health exchange would have had to offer packages at least as generous as a new public plan. All insurers would have been prohibited from denying coverage based on pre-existing conditions, and would have had to cover children through age 25 on family plans.

GOVERNMENT-RUN PLAN: A new public plan would have offered comprehensive insurance similar to that available to federal employees.

HOW YOU CHOOSE YOUR HEALTH INSURANCE: Through a new National Health Insurance Exchange where individuals could buy the new public plan or qualified private plans.