TODAY marks the beginning of health care coverage under the Affordable Care Act’s new insurance exchanges, for which two million Americans have signed up. Now that the individual mandate is officially here, let me begin with an admission: Obamacare is awful.

That is the dirty little secret many liberals have avoided saying out loud for fear of aiding the president’s enemies, at a time when the ideal of universal health care needed all the support it could get. Unfortunately, this meant that instead of blaming companies like Novartis, which charges leukemia patients $90,000 annually for the drug Gleevec, or health insurance chief executives like Stephen Hemsley of UnitedHealth Group, who made nearly $102 million in 2009, for the sky-high price of American health care, the president’s Democratic supporters bought into the myth that it was all those people going to get free colonoscopies and chemotherapy for the fun of it.

I believe Obamacare’s rocky start — clueless planning, a lousy website, insurance companies raising rates, and the president’s telling people they could keep their coverage when, in fact, not all could — is a result of one fatal flaw: The Affordable Care Act is a pro-insurance-industry plan implemented by a president who knew in his heart that a single-payer, Medicare-for-all model was the true way to go. When right-wing critics “expose” the fact that President Obama endorsed a single-payer system before 2004, they’re actually telling the truth.

What we now call Obamacare was conceived at the Heritage Foundation, a conservative think tank, and birthed in Massachusetts by Mitt Romney, then the governor. The president took Romneycare, a program designed to keep the private insurance industry intact, and just improved some of its provisions. In effect, the president was simply trying to put lipstick on the dog in the carrier on top of Mitt Romney’s car. And we knew it.