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The decision by Aetna to withdraw from many ObamaCare exchanges was a predictable outrage that opens to the door not to the demise of ObamaCare, but the dramatic improvement of ObamaCare led by a grand battle by Sen. Bernie Sanders (Vt.) and progressives to enact the public option and move toward a Medicare-for-all healthcare system. Let's coin the phrase "BernieCare" to describe the kind of healthcare system that progressives believe, with some reason, would be the kind of program that voters prefer. Sanders has long been a champion of single-payer healthcare — which I personally support — but for obvious political reasons in a lobbyist-dominated Washington, single payer is highly unlikely to happen soon. Sanders, who is more of a highly skilled political and legislative tactician than pundits understand, has responded to the Aetna withdrawal from many healthcare exchanges by publicly announcing he will wage an all-out campaign to enact the public option. The Sanders response to Aetna is perfectly timed and politically powerful. The public option, which should have been enacted with the original ObamaCare program, would guarantee that every healthcare exchange will have at least one highly affordable choice for consumers to accept. The result of including a public option on healthcare exchanges would be that one of two things would happen. Either other insurers would remain on the exchanges to compete for the consumer's dollar, which would create a downward pressure on insurance premiums that benefits consumers, or Americans would enroll in the public option en masse, which would accelerate the move toward a true single-payer system. I was a vehement supporter of the public option during the original ObamaCare debate. It was a tragedy of epic proportion that the public option was not included in the final ObamaCare law, despite the fact that President Obama supported it and Democrats then had large majorities in the House and Senate. That omission occurred, despite strong public support for the public option, because of the power of insurance lobbyists in Washington, the obstruction of Republicans in Congress and the reluctance of a small number of more conservative Democratic senators to defy the insurance lobby. Democratic nominee Hillary Clinton, Sanders and the Democratic Party are now united in support of the public option. This was one of the more important developments at the time of the Democratic National Convention when the Clinton and Sanders camps unified behind a series of platform positions that included long-held progressive policies and ideas. The BernieCare option has always been a frontal assault against the greed of certain insurance companies and the lobbying industrial complex that has dominated healthcare policy for far too long. The BernieCare strategy was dramatized during his campaign for president, where he advocated a full single-payer system, and is now advancing again with the decision of Aetna to abandon most of the ObamaCare exchanges. This strategy has taken various forms in recent years. The idea of a public option on the exchanges has always garnered strong public support. The idea of