Obama becomes US president, turns page on Bush

"Starting today, we must pick ourselves up, dust ourselves off, and begin again the work of remaking America," Obama said, addressing an exuberant sea of people in an inaugural speech that was optimistic but realistic about the challenges ahead.

He pledged bold and swift action to bring new life to the US economy and declared to millions watching abroad: "We are ready to lead once more."

Underscoring the tough road ahead, Wall Street ushered in the new presidency with a record Inauguration Day slide amid signs the global banking crisis was far from over.

Hundreds of thousands of people erupted in cheers on Washington's National Mall grounds as they watched Obama stand with one hand raised and the other on a Bible used to swear in Abraham Lincoln in 1861, and repeat the brief oath to become the 44th US president.

Beaming, the new president kissed his wife, Michelle, and his school-age daughters, Malia and Sasha. Then he turned to the crowd stretching into the distance on a cold, wintry day.

"Obama, Obama," the crowd cheered.

Obama, a Democrat, succeeded Republican George W. Bush, who served two terms and left office having plumbed record lows in approval ratings and leaving a legacy of two wars and economic recession.

Obama offered a sharp break from Bush, emphasizing the need for sacrifice and pledging to restore US global standing, responsibly end the war in Iraq and focus less on the size of government and more on whether it works.

WALKING SOME OF THE WAY

During a triumphant ride down Pennsylvania Avenue to the White House in a heavily armored limousine, Obama and his wife thrilled wildly cheering crowds by getting out of the limo and walking part of the way.

Security personnel -- part of a contingent that numbered in the thousands -- kept close watch.

Obama has to hit the ground running given the state of the economy. The US Senate confirmed several of his appointments, including Steven Chu as energy secretary and Tom Vilsack for agriculture.

The Senate Finance Committee is expected to vote on Timothy Geithner as treasury secretary on Thursday. Hillary Clinton, Obama's fierce rival for the Democratic presidential nomination and his choice as secretary of state, is expected to be approved by the full Senate on Wednesday.

Before getting to work, Obama enjoyed a night of celebration, appearing with Michelle at 10 inaugural balls around Washington.

"How good lookin' is my wife?" Obama asked at their first stop, where they danced as Beyonce performed Etta James' "At Last" and Stevie Wonder sang "Signed, Sealed, Delivered, I'm Yours" -- the song that closed Obama's campaign rallies.

The inauguration of Obama, 47, the son of a black Kenyan father and a white mother from Kansas, was steeped in symbolism for African-Americans, who for generations suffered slavery and then racial segregation that made them second-class citizens.

The jubilant mood was jolted by the collapse of Massachusetts Democratic Senator Edward Kennedy, 76, who suffered a seizure at an inaugural lunch honoring Obama. The brother of the late President John F. Kennedy was driven away by an ambulance to a hospital, where he was described as awake and answering questions.

BRACING FOR REALITY

Polls show widespread US public support for Obama and optimism about the coming four years of his presidency. But Obama sought to temper soaring expectations.

The new president cited the worst US economic conditions in 70 years and the Iraq and Afghanistan wars as having put the country in crisis. "What is required of us now is a new era of responsibility," he said.

He said the "badly weakened" US economy will be a top priority as he works with the Democratic-controlled Congress on an estimated $825 billion economic stimulus package.

The economy fell victim to "greed and irresponsibility" and an avoidance of hard choices, Obama said. The economic crisis showed that markets can spin out of control "without a watchful eye," he added, signaling he would put a priority on revamping financial regulations.

Obama will meet his senior economic advisers on Wednesday to discuss the stimulus plan.

Turning to foreign policy and the standing of the United States abroad, Obama vowed the United States would leave Iraq "responsibly" and help Afghanistan win a hard-earned peace.

He did not provide a specific timetable for a US withdrawal from Iraq, but under a US-Iraqi agreement, US troops would depart by the end of 2011. Obama has pledged to increase US troop strength in Afghanistan to turn back a resurgent Taliban.

He was due to meet military commanders on Wednesday to discuss possibly accelerating the withdrawal from Iraq, and the need for more forces in Afghanistan.

In a clear reference to harsh US interrogation practices of terrorism suspects that have been widely condemned abroad, Obama vowed a change, saying he rejected as false "the choice between our safety and our ideals."

There has been broad world disapproval of many Bush policies in the US war on terrorism that Bush declared after the September 11, 2001, attacks.

After years of tense relations with Muslims, Obama offered conciliatory words to the Islamic community, saying he would seek a "new way forward" based on mutual interest and mutual respect.

But on the issue of terrorism, he said: "You cannot outlast us, and we will defeat you."

Bush, his public approval ratings in the basement as the cheers for Obama resounded, left Washington for his home state of Texas after the inauguration.

11 MILLION UNEMPLOYED

The recession has saddled the country with a $1 trillion deficit and 11 million people unemployed and has become the top concern of the US public. Economic woes helped Obama beat Republican John McCain in the November presidential election.

"I don't care what color he is," said Garrell Winstead, 67, a real estate investor from Cincinnati, Ohio, who was in Tuesday's crowd. "If the economy doesn't improve and if he doesn't create enough jobs, patience will evaporate."

Obama also repeated campaign promises to "restore science to its rightful place" -- the Bush administration was criticized for packing scientific advisory panels with industry representatives and ideologues. He also promised to put technology to work transforming healthcare, and action toward an alternative energy policy. 

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