"It will be a random tax on medical innovation," said economist Douglas Holtz-Eakin, an adviser to Republicans.
But with any IPAB-ordered cuts years away, it remains to be seen if Republicans can use the issue to move election-year public opinion.
"Protecting Medicare and sustaining it for the future is an incredibly powerful goal for seniors," said Mollyann Brodie, polling director for the nonpartisan Kaiser Family Foundation. But with IPAB "we are talking about something that is not real for people, and they don't understand how it works."
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