A Senate panel has voted to subpoena former Sen. Jon Corzine to testify about his role leading MF Global.

The trading firm filed for bankruptcy this fall after a disastrous bet on European debt. Nearly $1.2 billion is estimated to be missing from customer accounts.

Sen. Debbie Stabenow, chairman of the Senate Agriculture Committee, said Corzine's testimony at the Dec. 13 hearing is essential to learn what happened. The vote comes just days after the House Agriculture Committee took similar action to force Corzine to appear at a hearing Thursday.

Corzine, a Democrat, represented New Jersey in the Senate from 2001 to 2005. He later served as the state's governor. It marks the first time a member of Congress has been forced to testify before his former peers since 1908.

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