The battle between congressional Republicans and the White House over the Affordable Care Act is again escalating—in court and on Capitol Hill.

The administration on Wednesday appealed a federal trial judge’s ruling that the government is improperly reimbursing insurers under a program to cover discounts for low-income consumers.

And House Republicans on Thursday began two days of hearings to hammer away at the issue. They released a report that said the administration distributed the funds even though it was aware it needed Congress’s approval.

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