Federal health officials approved loans to Obamacare health insurance co-ops despite “specific warnings” about across-the-board failures from Deloitte Consulting, according to a blistering Senate staff report released Thursday.

The report was released by the Senate Permanent Subcommittee on Investigations at a hearing that featured Andy Slavitt, the embattled acting administrator of the Center for Medicare and Medicaid Services (CMS)  — the section of the U.S. Department of Health and Human Services that manages Obamacare.

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