President Barack Obama announced his intention to run for a second term in 2012.
The Obama team has released a video on their official website and sent an e-mail to supporters announcing his plans.
The president has an online network of millions of Americans and his campaign website has been widely regarded as a central element of his electoral success in 2008.
The announcement was widely expected, and his campaign team is to present the papers this week's elections.
Obama did not appear in the video posted on YouTube and the official website of the campaign. Instead supporters look back to the 2008 campaign and talk about their hopes for the supply of 2012.
"I do not agree with Obama on everything, but I respect him and I trust him," Ed, North Carolina, says in the video, a line is considered the voice of a point of view attract liberal and independent, who criticized some policies of Mr. Obama.
In his e-mail to supporters, said Obama campaign would be to start small and grow over time, "with people organizing block by block, talking to neighbors, colleagues and friends."
"So even if I'm focused on the job I chose to do, and the race can not reach the speed of a year or more, the work of the foundation of our campaign must begin today."
Discovering a new look for the site of the Obama campaign, his team told supporters: "The idea is to improve what has worked for four years, the loss of what is not, and to build a campaign that reflects the thoughts and experiences of the fans who have driven this movement. "
Analysts say the president now work together to convince the American people, has provided such a change, he promised to America in 2008.
And in the next 20 months before the presidential election, he will defend the policy of his government has worked to impose, as his health care reform and his efforts to revitalize the economy.
reelection campaign of Mr. Obama would seek to raise as much as $ 1 billion (£ 620), an increase of $ 750 million raised for the 2008-campaign.
As the owner, the Obama team will be able to request support from different donors than they did in 2008 when money was raised by a multitude of small individual donations and Obama began the campaign as an outsider.

The Obama team has released a video on their official website and sent an e-mail to supporters announcing his plans.
The president has an online network of millions of Americans and his campaign website has been widely regarded as a central element of his electoral success in 2008.
The announcement was widely expected, and his campaign team is to present the papers this week's elections.
Obama did not appear in the video posted on YouTube and the official website of the campaign. Instead supporters look back to the 2008 campaign and talk about their hopes for the supply of 2012.
"I do not agree with Obama on everything, but I respect him and I trust him," Ed, North Carolina, says in the video, a line is considered the voice of a point of view attract liberal and independent, who criticized some policies of Mr. Obama.
In his e-mail to supporters, said Obama campaign would be to start small and grow over time, "with people organizing block by block, talking to neighbors, colleagues and friends."
"So even if I'm focused on the job I chose to do, and the race can not reach the speed of a year or more, the work of the foundation of our campaign must begin today."
Discovering a new look for the site of the Obama campaign, his team told supporters: "The idea is to improve what has worked for four years, the loss of what is not, and to build a campaign that reflects the thoughts and experiences of the fans who have driven this movement. "
Analysts say the president now work together to convince the American people, has provided such a change, he promised to America in 2008.
And in the next 20 months before the presidential election, he will defend the policy of his government has worked to impose, as his health care reform and his efforts to revitalize the economy.
reelection campaign of Mr. Obama would seek to raise as much as $ 1 billion (£ 620), an increase of $ 750 million raised for the 2008-campaign.
As the owner, the Obama team will be able to request support from different donors than they did in 2008 when money was raised by a multitude of small individual donations and Obama began the campaign as an outsider.
