Barring unforeseen developments, the document should receive the support of the 85 lawmakers of the Shiite United Iraqi Alliance, the 54 Kurdish lawmakers and most of the 44 lawmakers in the Iraqi Accordance Front, the largest Sunni Arab bloc.

Radical Shiite cleric Muqtada al-Sadr, who commands the loyalty of 30 lawmakers, urged parliament in a statement Sunday to reject the agreement "without the least hesitation." The statement was read by a top al-Sadr aide on Iraq's al-Sharqiya Television.

Al-Sadr, whose militiamen battled U.S. forces in the past, has threatened to resume attacks on U.S. forces if they don't immediately withdraw from Iraq. He called for a mass prayer and protest in a central Baghdad square on Friday.

The Cabinet vote came a day after Iraq's most influential Shiite cleric, Grand Ayatollah Ali al-Sistani, indicated he would not object to the pact if it passes by a comfortable majority in parliament.

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Contributing: Sameer N. Yacoub, Sinan Salaheddin and Saad Abdul-Kadir, Associated Press