Republicans ended their three-day filibuster of a financial regulatory overhaul Wednesday, reaching agreement with Democrats to begin debate on a bill aimed at curbing the risky investment practices that brought the U.S. economy to the brink of collapse.

After voting three times this week to block debate, GOP senators decided to reverse course and attempt to reshape the bill through the amendment process. The change in tactics came after Senate banking committee Chairman Christopher J. Dodd (D-Conn.) and the ranking Republican on the panel, Sen. Richard C. Shelby (Ala.), announced that they had again reached an impasse in their efforts to reach a bipartisan compromise.

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