Romneycare as the model for ACA

[stpioc]

A notable exception to this monkish silence is Stuart Butler of the Brookings Institution in Washington. Butler, 67, is the Zelig of modern health-care reform, present at every critical stage. In 1993, as a scholar at the conservative Heritage Foundation, he designed a health-care plan around an individual mandate that became the main alternative to the Clinton administration’s plan. A decade later, when he soured on the mandate, many conservatives followed suit. President Obama’s decision to make the mandate a pillar of the ACA ignited broad conservative antipathy to the idea, which left Butler, its progenitor, awkwardly situated when Heritage became the locus of opposition. His decision last July to leave Heritage after 35 years and move to Brookings is a gauge of how far Republican health-care policy has moved to the right since the Clinton era.

The Return of the Death of Obamacare - Bloomberg Politics

By the way, the individual mandate is simply a necessity if you want to end discrimination on the basis of pre-existing conditions (see here)