WASHINGTON (AP) — A huge new paperwork headache for the government could also be jeopardizing coverage for some of the millions of people who just got health insurance under President Barack Obama’s law.

A government document provided to The Associated Press indicates that at least 2 million people enrolled for taxpayer-subsidized private health insurance have data discrepancies in their applications that, if unresolved, could affect what they pay for coverage, or even their legal right to benefits.