Sen. Tim Johnson, chairman of the Senate Banking Committee, and Rep. Jeb Hensarling, chairman of the House Financial Services Committee, have remained mum over the renewed push to end "too big to fail", which has garnered attention recently from prominent lawmakers, regulators and pundits.

Johnson has consistently defended the Dodd-Frank Act and continues to argue that the reform law has already ended "too big to fail." As a result, the banking panel leader has yet to take a position on bills that would break up the biggest institutions and boost capital standards at the largest banks.

Hensarling, who dislikes Dodd-Frank, believes government should not bail out big banks and that the reform law failed to solve the problem. It is still unclear as to what legislative position he will support.

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