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U.S. President Barack Obama has often repeated that pledge, which includes anyone who has health insurance.
"If you're one of the more than 250 million Americans who already have health insurance, you will keep your health insurance," the president said following the Supreme Court decision on June 28 that upheld Obamacare. "This law will only make it more secure and more affordable."
Of course, Republicans claims on Obamacare take the opposite extreme.
"Frankly, the people who have healthcare in this country and like it will not be able to keep what they have," said House Majority Leader Eric Cantor, R-VA, the same day.
While something of an exaggeration, Cantor may be closer to the real-life impact of the Affordable Care Act than the president, particularly when it comes to employee-sponsored health benefits.
The Congressional Budget Office estimates 154 million Americans - 72% of the non-elderly population - have health insurance through their employer.
While nothing in Obamacare explicitly forces employers to drop coverage, the healthcare reform law does introduce new rules and requirements. Those provisions will affect how employers offer health insurance, what plans they offer and if they offer any at all.
Business owners, for their part, are still making up their minds as to how they'll deal with the changes healthcare reform will bring (unless, of course, the Republicans sweep in November and repeal it).