Affordable Care Act tax credits work despite fraud and should be expanded 

A controversial analysis authored by a long-time critic of the Affordable Care Act claims that a policy that expanded and improved Health Insurance Marketplace premium tax credits for 20 million Americans should be discontinued due to fraud. Fraudulent insurance enrollment by some insurance companies and their agents should be — and is being — targeted by the administration and Congress.  

But saying that fraudulent enrollment makes the tax credit unsuccessful skirts...