Three U.S. servicemen were killed, and a roadside bomb killed four Iraqis.
BAGHDAD, Iraq (AP) -- Facing the prospect of a Shiite Muslim landslide, Sunni politicians offered Saturday to participate in mapping the nation's political future. But Sunni rebels showed no sign of compromise, killing three U.S. troops and at least 33 Iraqis in a string of attacks.
Officials of the Shiite-led coalition that has rolled up a big lead in last weekend's elections said it wants the prime minister post in the upcoming government -- casting doubt on chances that U.S.-backed Prime Minister Ayad Allawi can keep his job.
Meanwhile, police questioned the driver and translator of Italian journalist Giuliana Sgrena, who was seized by gunmen Friday near Baghdad University -- the first reported kidnapping of a foreigner since the Jan. 30 vote. But police said the two were not suspects in her abduction.
Allawi, whose ticket is running a distant second in election returns so far, had been seen as a possible compromise candidate if the Shiites and their allies don't win the two-thirds of the 275 National Assembly seats needed to pick the government.
But the United Iraqi Alliance -- a Shiite-led group whose leaders have ties to Iran -- appeared confident it would have to be given the top spot.
"The Alliance would like to get either the position of the president or the prime minister, and it prefers that it be that of the prime minister," Redha Taqi, a top official in one of the coalition factions, told The Associated Press.
The presidency is a largely ceremonial post, currently held by a Sunni Arab, Ghazi al-Yawer. Kurdish leader Jalal Talabani has announced his candidacy for president, and the Kurds are likely to end up as one of the top three blocs in the assembly. Shiites and Kurds suffered under Saddam Hussein's regime and are expected to work together in the assembly.
The Iraqi election commission released no new election returns Saturday but predicted it would announce final vote totals by Thursday. The National Assembly must elect a president and two vice presidents by a two-thirds majority. The three in turn select a prime minister subject to assembly approval.
Partial returns from about 35 percent of the 5,200 polling centers showed the Alliance, which was endorsed by Grand Ayatollah Ali al-Sistani, with about two-thirds of the votes to 18 percent for Allawi, a secular Shiite. Shiites are believed to make up two-thirds of Iraq's 26 million people.
Most of those returns were from Shiite provinces where the Alliance, whose leaders have links to Iran, had been expected to run strong. No returns have been announced from much of Baghdad and from heavily Sunni Arab or Kurdish provinces.
But many Sunnis apparently stayed at home election day, heeding boycott calls by hard-line clerics or fearing insurgent attacks. That has raised fears that the Sunni Arab minority, estimated at 20 percent of the population, may not accept a new Shiite-dominated government, fueling the Sunni-led insurgency.
In a bid to avoid marginalization, a group of Sunni Arab parties that refused to participate in the election said Saturday they want to take part in the drafting of a permanent constitution -- a chief task of the new National Assembly.
"The representatives of these political bodies that did not participate in the elections have decided in principle to take part in the writing of the permanent constitution in a suitable way," a statement from the group said.
Armed Sunni groups -- including nationalists, Saddam supporters and Islamic zealots -- showed little sign they were ready to join in any national reconciliation.
Strong detonations rumbled through Baghdad at sunset, and police said insurgents had fired mortar shells near Baghdad's international airport.
A U.S. Marine was killed Saturday during "security and stability operations" in Bail province south of Baghdad, the U.S. command said. Two American soldiers were killed in a roadside bombing Friday night near the town of Beiji, about 155 miles north of Baghdad, the U.S. military said Saturday.
A roadside bomb killed four Iraqi national guardsmen early Saturday in Basra, Iraq's second-largest city. Gunmen stormed a police station in the northern city of Mosul, killing five officers, police said.
The brother of Mosul's police chief was kidnapped Saturday, police said, three days after the official, Gen. Mohammed Ahmed al-Jubouri, threatened to destroy rebel sanctuaries if insurgents did not surrender their weapons within two weeks. Al-Jubouri said late Saturday that his brother was freed in a raid that netted nine of the kidnappers.
Elsewhere, insurgents assassinated a member of the Baghdad city council, Abbas Hasan Waheed, and a member of Iraq's intelligence service in two separate drive-by shootings.
Bombs and clashes killed seven Iraqis in Samarra and Tal Afar, north of Baghdad, and in Ramadi, to the west.