WASHINGTON — The Government Accountability Office is urging regulators to finalize key provisions of the Dodd-Frank Act in a report released Thursday that tallies the amount of government support banks received during the financial crisis.

The study is the first of two highly anticipated studies the agency is conducting that will address ongoing concerns about "too big to fail." The GAO agreed to investigate the issue in January, following a request from Sens. Sherrod Brown, D-Ohio, and David Vitter, R-La. The lawmakers praised the report on Thursday, arguing that it shows the need for their pending legislation to raise capital levels and break up the big banks.

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