´Anything possible,´ Obama tells joyous crowd

A child holds a flag with a picture of US President -elect Barack Obama as she attends the We Are One: Opening Inaugural Celebration, held in honor of US President-elect Barack Obama, at the Lincoln Memorial in Washington January 18, 2009. [Agencies]

Obama's aides said he was readying an inaugural address that would stress twin themes of responsibility and accountability, and they predicted he would devote his first week in office to economic recovery, setting in motion a 16-month troop withdrawal from Iraq and decreeing a code of ethics for his administration.

With the economy weak and growing weaker, banks in trouble and joblessness rising, Obama's team was careful to warn against any expectation that he would be a miracle worker once in office. "I think it's fair to say that it's going to take not months but years to really turn this around," said David Axelrod, a political strategist expected to have White House space mere paces from the Oval Office.

Obama said as much in his own brief remarks. "I won't pretend that meeting any one of these challenges will be easy. It will take more than a month or a year, and it will likely take many," he said.

He stood alone at the base of the steps before the statue of a seated Lincoln looking out at a crowd every bit as large as the one King addressed a generation earlier in his "I have a dream" speech that was a defining moment of the civil rights era.

An even larger audience is forecast for the inauguration outside the Capitol on Tuesday, with estimates running into the millions. Agencies in charge of logistics and security said they would enforce a ban on personal auto traffic across the Potomac River bridges from Virginia into Washington and seal off a large portion of the downtown area. Access to buildings along the Inaugural parade route down Pennsylvania Avenue was limited to those who gained Secret Service approval in advance.

Obama's day began at the Tomb of he Unknowns at Arlington National cemetery, where he and Vice President-elect Joseph Biden laid a wreath in memory of fallen heroes. The two men placed their hands over their hearts as a uniformed bugler played taps in a somber opening to a festive day.

The scene was quite different at the church a few miles away, where the congregation erupted in applause when Obama and his family walked to their seats.

"Understand that God has prepared you, and God has placed you, and God will not forsake you," Harkins told the incoming president.

Children sang and spoke selected readings that recalled King, killed in 1968.

"Martin Luther King walked so that Barack Obama could run," said one boy. "Barack Obama ran so that all children could fly," added another, standing a few feet away from the first African-American ever elected president.