This WSJ editorial explains why the Medicare “buy-in” is a terrible idea.
The public option—an insurance program open to everyone, financed by taxpayers and run like Medicare—is intended as a veiled substitute for “single-payer” Canada-style insurance. Under the cover of “choice” and “competition,” the entitlement would quickly squeeze out private insurance as people gravitated to “free” coverage and the government held down costs via price controls the way Medicare does now.
Mr. Reid’s buy-in simply cuts out the middle man. Why go to the trouble of creating a new plan like Medicare when Medicare itself is already handy? A buy-in is an old chestnut of single-payer advocate Pete Stark, and it’s the political strategy liberals have tried since the Great Society: Ratchet down the enrollment age for Medicare, boost the income limits to qualify for Medicaid, and soon health care for the entire middle class becomes a taxpayer commitment.
It is well worth a full read.