via reason.com

The estimated scores of millions of eventual health-plan cancellations that Americans will soon face are not some weird unintended consequence of ObamaCare. They are fundamental to making the law work as written. The Affordable Care Act relies on previously uninsured young people to overpay for coverage they don't need, and for previously insured adults to pay for health contingencies they will never face, be it childbirth for men or pediatric dental care for grandparents. That is what is supposed to allow more people to be covered and to keep overall rates in check. Since making people's health insurance more expensive is not particularly popular, Obama lied about it, and not only when he claimed you could keep your plan and your doctor.

In fact, the president promised at least 15 times while running for president in 2008 that his health insurance reform would reduce premiums by an average of $2,500 per family.

The worst part is that the President also lied about the lie. When the political storm over the cancelled policies was raging, he told NBC Interviewer Chuck Todd:

And I am sorry that they, you know, are finding themselves in this situation, based on assurances they got from me.

People aren't "finding themselves in the situation", as Peter Suderman pointed out:

They are finding themselves in that situation because of legislation that his party crafted, rules his administration drafted, and a bill that he promoted vigorously and then signed into law. His assurances misled people about what would happen under that law, but did not cause the plans to be terminated.