The battle over Obamacare implementation

Analysis: GOP plan to cost Obamacare enrollees $1,542 more a year

The plan hits low-income and older enrollees the hardest.

Obamacare saved consumers $9 billion in premiums

The health-care law requires insurers to spend on medical care — or else.

The uninsured rate keeps plummeting

The uninsured rate keeps on falling, the most recent round of Gallup poll data shows.

Obamacare's buyers are happy with their coverage

The people who bought Obamacare during the law's first open enrollment period are largely pretty satisfied customers.

Gallup: Most newly insured used Obamacare

More evidence Obamacare helped cut the uninsured rate.

How will states pay for year two of Obamacare?

More than a dozen states decided to build new health insurance marketplaces under Obamacare. Now, they need to figure out how to pay the costs of running those massive websites.

Odds of a Virginia Medicaid expansion dwindling

Gov. McAuliffe will look for alternative ways to cover low-income Virginians.

These 7 major cities are losing out on Obamacare

Major cities could decrease their uninsured rates by a lot more if their states expanded Medicaid.

Most Obamacare enrollees were previously uninsured

A slim majority of Obamacare enrollees were uninsured when they signed up for coverage.

Kentucky governor: No Obamacare means no Kynect

Gov. Steve Beshear never planned on his state becoming an Obamacare stand-out. It happened anyway.

Millions are paying less for Obamacare than cable

Those tax credits are saving a lot of people money.

A conservative senator backs expanding Medicaid

Another red state could cave on Obamacare.

What Washington state tells us about Obamacare

The deep-blue state's experience over the last eight months shows what strong political will can and can't do to make the Obamacare work.

Senate confirms new health secretary

Sylvia Burwell to lead the agency in charge of Obamacare.

Obamacare advocate turns on the employer mandate

Support for killing Obamacare's employer mandate is growing.

Obamacare opponents spent 15 times more on ads

As the health-care law remains unpopular, Republicans seize the opportunity.

GOP governors like this part of Obamacare

Republican governors have incredible leverage in negotiating the terms of expanding Medicaid. They're using that power to reshape the public program to look more like private insurance

Meet Obamacare's weapon against health-care costs

Obamacare isn't all about its insurance exchanges.

Obamacare rate hikes are coming. Don't freak out.

Insurance premiums went up every year before Obamacare. They're likely to go up afterwards, too.

Early data: Obamacare premiums aren't soaring

The health-care law doesn't seem to be doing as bad as opponents suggested.

Hawaii spent tons of money on Obamacare

State-run exchanges enrolled more people, but was it worth the price?

Obamacare enrollees are paying their bills

Insurers disputed a report from House Republicans.

Here's how Obamacare is doing in your state

It's official: Obamacare tops 8 million signups

The White House thinks lots of the new enrollees were previously uninsured.

Insurers sound pretty happy about Obamacare

If the health-care law fell flat, insurance companies would likely be the first to panic. But the latest earnings reports show Obamacare is largely meeting expectations.