BAGHDAD: Iraq's incumbent Prime Minister Nouri al-Maliki appeared more isolated Tuesday as he pressed his battle to remain in power while Iraqi politicians and the international community rallied behind a Shiite premier-designate who could be a more unifying figure, badly needed if the nation is to confront a spreading Sunni insurgency.
U.S. Secretary of State John Kerry urged Tuesday the prime minister-designate, Haider al-Abadi, to work quickly to form an inclusive government and said the U.S. is prepared to offer it significant additional aid in the fight against Islamic State of Iraq and Greater Syria (ISIS) militants.
The power struggle in Baghdad comes as Iraq is battling militants from the Al-Qaeda breakaway group in the north and the west. The onslaught by ISIS, which has captured large chunks of Iraqi territory since June, has become the country's worst crisis since the U.S. troop withdrawal in 2011.
Abadi, the deputy speaker of parliament from Maliki's Shiite Dawa party, was selected Monday by President Fouad Masoum to be the new prime minister and was given 30 days to present a new government to lawmakers for approval.
President Barack Obama called Abadi's nomination a "promising step forward" and urged "all Iraqi political leaders to work peacefully through the political process."
But Maliki, who has been in power for eight years, defiantly rejected the nomination, insisting it "runs against the constitutional procedures" and accusing the United States of siding with political forces "who have violated the constitution."
In Sydney, Kerry said Tuesday that the United States "stands ready to fully support a new and inclusive Iraqi government."
"Without any question, we are prepared to consider additional political, economic and security options," Kerry said.
The U.S. has already increased its role in fighting back the Sunni extremists who have threatened the autonomous Kurdish region in northern Iraq. American airstrikes have helped the Kurds achieve one of their first victories over the weekend after weeks of retreating. And senior American officials said Monday that U.S. intelligence agencies are directly arming the Kurds who are battling the militants.
The development reflected a shift in Washington's policy of only working through the central government in Baghdad.
Abadi's nomination was a major breakthrough in the political deadlock that followed the April parliamentary elections. It shows that Maliki - who has demanded that he retain his post as prime minister for a third term since his bloc won most seats in the assembly - has lost some support with the main coalition of Shiite parties.
His critics say Maliki contributed to Iraq's political crisis by monopolizing power and pursuing a sectarian agenda that alienated the country's Sunni and Kurdish minorities.
Abadi, the former minister of communications from 2003-04, pledged to form a government to "protect the Iraqi people." He was nominated after receiving the majority of votes from lawmakers within the Iraqi National Alliance, a coalition of Shiite parties.
So far, there have been only rare voices in support of Abadi among Iraqi Sunnis, who have long criticized Maliki of sidelining their community and inflaming sectarian tensions.
"Change is essential and a chance must be given to others because defiance is wrong," Hamid al-Mutlaq, a Sunni lawmaker, told The Associated Press.
The Shiite Alliance that proposed Abadi "has to come up with a clear approach over how to run the government in a way that corrects the mistakes, changes the course, boosts national unity away from sectarianism and crises," added Mutlag.
But there were also those who defended Maliki's struggle to retain his job and who criticized Abadi's nomination.
"This decision will lead the country into big problems and the president bears full responsibility for this situation," said Mohammad al-Ogeili, a lawmaker from Maliki's State of Law parliamentary bloc.
The U.S. airstrikes, which began last week, have reinvigorated Iraqi Kurdish forces battling ISIS. The Kurdish peshmerga fighters retook two towns from the Sunni militants Sunday in what was one of their first victories after weeks of retreat. But in the eastern Diyala province, Kurdish forces were driven out Monday from the town of Jalula after fierce fighting with the militants.
Meanwhile, the European Union said Tuesday that it wants to "bring vital assistance to hundreds of thousands of Iraqi civilians trapped by the fighting" and was increasing its aid by 5 million euros ($7 million) to a new total of about $23 million for this year.
EU Aid Commissioner Kristalina Georgieva said the funding will help "vulnerable Iraqis, including the minority groups besieged in the mountains of Sinjar" and the communities hosting a growing number of refugees.