Biden considered running for president again multiple times since his failed 1988 bid.
He declared his candidacy for president on January 31, 2007, after having discussed running for months.
Biden made a formal announcement to Tim Russert on Meet the Press, saying he would "be the best Biden I can be".
In January 2006, Delaware newspaper columnist Harry F. Themal wrote that Biden "occupies the sensible center of the Democratic Party".
Themal concluded that that was the position Biden desired, and that in a campaign "he plans to stress the dangers to the security of the average American, not just from the terrorist threat, but from the lack of health assistance, crime, and energy dependence on unstable parts of the world."

During his campaign, Biden focused on the war in Iraq and his support for implementing the Biden-Gelb plan to achieve political success.
He touted his record in the Senate as the head of major congressional committees and his experience in foreign policy.
Despite speculation to the contrary, Biden rejected the notion of becoming Secretary of State, focusing on only the presidency.
At a 2007 campaign event, Biden said, "I know a lot of my opponents out there say I'd be a great secretary of state.
Seriously, every one of them.
Do you watch any of the debates? '
Joe's right, Joe's right, Joe's right.'"
Other candidates' comments that "Joe is right" in the Democratic debates were converted into a Biden campaign theme and ad.
In mid-2007, Biden stressed his foreign policy expertise compared to Obama's, saying of the latter, "I think he can be ready, but right now I don't believe he is.
The presidency is not something that lends itself to on-the-job training."
Biden also said Obama was copying some of his foreign policy ideas.
Biden was noted for his one-liners on the campaign trail, saying of Republican then-frontrunner Rudy Giuliani at the debate on October 30, 2007, in Philadelphia, "[t]here's only three things he mentions in a sentence: a noun, and a verb and 9/11."
Overall, Biden's debate performances were an effective mixture of humor and sharp and surprisingly disciplined comments.

Biden made controversial remarks during the campaign.
On the day of his January 2007 announcement, he spoke of fellow Democratic candidate and Senator Barack Obama: "I mean, you got the first mainstream African-American who is articulate and bright and clean and a nice-looking guy—I mean, that's a storybook, man."
This comment undermined his campaign as soon as it began and significantly damaged his fundraising capabilities; it later took second place on Time magazine's list of Top 10 Campaign Gaffes for 2007.
Biden had also been criticized in July 2006 for a remark he made about his support among Indian Americans: "I've had a great relationship.
In Delaware, the largest growth in population is Indian-Americans moving from India.
You cannot go to a 7-Eleven or a Dunkin' Donuts unless you have a slight Indian accent.
I'm not joking."
Biden later said the remark was not intended to be derogatory.

In an unusual move, Biden shared campaign planes with one of his rivals for the nomination, Senator Chris Dodd of Connecticut.
Dodd and Biden were friends and seeking to save funds during somewhat long-shot efforts at the nomination.

Overall, Biden had difficulty raising funds, struggled to draw people to his rallies, and failed to gain traction against the high-profile candidacies of Obama and Senator Hillary Clinton.
He never rose above single digits in national polls of the Democratic candidates.
In the first contest on January 3, 2008, Biden placed fifth in the Iowa caucuses, garnering slightly less than one percent of the state delegates.
He withdrew from the race that evening, saying, "There is nothing sad about tonight.
 ... I feel no regret."

Despite its lack of success, Biden's stature in the political world rose as the result of his 2008 campaign.
In particular, it changed the relationship between Biden and Obama.
Although the two had served together on the Senate Foreign Relations Committee, they had not been close, with Bide
Biden considered running for president again multiple times since his failed 1988 bid. He declared his candidacy for president on January 31, 2007, after having discussed running for months. Biden made a formal announcement to Tim Russert on Meet the Press, saying he would "be the best Biden I can be". In January 2006, Delaware newspaper columnist Harry F. Themal wrote that Biden "occupies the sensible center of the Democratic Party". Themal concluded that that was the position Biden desired, and that in a campaign "he plans to stress the dangers to the security of the average American, not just from the terrorist threat, but from the lack of health assistance, crime, and energy dependence on unstable parts of the world."
During his campaign, Biden focused on the war in Iraq and his support for implementing the Biden-Gelb plan to achieve political success. He touted his record in the Senate as the head of major congressional committees and his experience in foreign policy. Despite speculation to the contrary, Biden rejected the notion of becoming Secretary of State, focusing on only the presidency. At a 2007 campaign event, Biden said, "I know a lot of my opponents out there say I'd be a great secretary of state. Seriously, every one of them. Do you watch any of the debates? 'Joe's right, Joe's right, Joe's right.'" Other candidates' comments that "Joe is right" in the Democratic debates were converted into a Biden campaign theme and ad. In mid-2007, Biden stressed his foreign policy expertise compared to Obama's, saying of the latter, "I think he can be ready, but right now I don't believe he is. The presidency is not something that lends itself to on-the-job training." Biden also said Obama was copying some of his foreign policy ideas. Biden was noted for his one-liners on the campaign trail, saying of Republican then-frontrunner Rudy Giuliani at the debate on October 30, 2007, in Philadelphia, "[t]here's only three things he mentions in a sentence: a noun, and a verb and 9/11." Overall, Biden's debate performances were an effective mixture of humor and sharp and surprisingly disciplined comments.
Biden made controversial remarks during the campaign. On the day of his January 2007 announcement, he spoke of fellow Democratic candidate and Senator Barack Obama: "I mean, you got the first mainstream African-American who is articulate and bright and clean and a nice-looking guy—I mean, that's a storybook, man." This comment undermined his campaign as soon as it began and significantly damaged his fundraising capabilities; it later took second place on Time magazine's list of Top 10 Campaign Gaffes for 2007. Biden had also been criticized in July 2006 for a remark he made about his support among Indian Americans: "I've had a great relationship. In Delaware, the largest growth in population is Indian-Americans moving from India. You cannot go to a 7-Eleven or a Dunkin' Donuts unless you have a slight Indian accent. I'm not joking." Biden later said the remark was not intended to be derogatory.
In an unusual move, Biden shared campaign planes with one of his rivals for the nomination, Senator Chris Dodd of Connecticut. Dodd and Biden were friends and seeking to save funds during somewhat long-shot efforts at the nomination.
Overall, Biden had difficulty raising funds, struggled to draw people to his rallies, and failed to gain traction against the high-profile candidacies of Obama and Senator Hillary Clinton. He never rose above single digits in national polls of the Democratic candidates. In the first contest on January 3, 2008, Biden placed fifth in the Iowa caucuses, garnering slightly less than one percent of the state delegates. He withdrew from the race that evening, saying, "There is nothing sad about tonight. ... I feel no regret."
Despite its lack of success, Biden's stature in the political world rose as the result of his 2008 campaign. In particular, it changed the relationship between Biden and Obama. Although the two had served together on the Senate Foreign Relations Committee, they had not been close, with Bide
Joe Biden