I wanted you to be one of the first to know: on Saturday, I will hold an event in Washington D.C. to thank everyone who has supported my campaign. Over the course of the last 16 months, I have been privileged and touched to witness the incredible dedication and sacrifice of so many people working for our campaign. Every minute you put into helping us win, every dollar you gave to keep up the fight meant more to me than I can ever possibly tell you.
On Saturday, I will extend my congratulations to Senator Obama and my support for his candidacy. This has been a long and hard-fought campaign, but as I have always said, my differences with Senator Obama are small compared to the differences we have with Senator McCain and the Republicans.
I have said throughout the campaign that I would strongly support Senator Obama if he were the Democratic Party's nominee, and I intend to deliver on that promise.
When I decided to run for president, I knew exactly why I was getting into this race: to work hard every day for the millions of Americans who need a voice in the White House.
I made you -- and everyone who supported me -- a promise: to stand up for our shared values and to never back down. I'm going to keep that promise today, tomorrow, and for the rest of my life.
I will be speaking on Saturday about how together we can rally the party behind Senator Obama. The stakes are too high and the task before us too important to do otherwise.
I know as I continue my lifelong work for a stronger America and a better world, I will turn to you for the support, the strength, and the commitment that you have shown me in the past 16 months. And I will always keep faith with the issues and causes that are important to you.
In the past few days, you have shown that support once again with hundreds of thousands of messages to the campaign, and again, I am touched by your thoughtfulness and kindness.
I can never possibly express my gratitude, so let me say simply, thank you.
Hillary Rodham Clinton
The New York Times explains Clinton's plans for her endorsement and how the Democratic Party is planning to unify and move forward from this point on:
Senator Hillary Rodham Clinton will endorse Senator Barack Obama on Saturday, bringing a close to her 17-month campaign for the White House, aides said. Her decision came after Democrats urged her Wednesday to leave the race and allow the party to coalesce around Mr. Obama. Howard Wolfson, one of Mrs. Clinton's chief strategists, and other aides said she would express support for Mr. Obama and party unity at an event in Washington that day. One adviser said Mrs. Clinton would concede defeat, congratulate Mr. Obama and proclaim him the party's nominee, while pledging to do what was needed to assure his victory in November. Her decision came after a day of conversations with supporters on Capitol Hill about her future now that Mr. Obama had clinched the nomination. Mrs. Clinton had, in a speech after Tuesday night’s primaries, suggested she wanted to wait before deciding about her future, but in conversations Wednesday, her aides said, she was urged to step aside. "We pledged to support her to the end," Representative Charles B. Rangel, a New York Democrat who has been a patron of Mrs. Clinton since she first ran for the Senate, said in an interview. "Our problem is not being able to determine when the hell the end is." Mrs. Clinton's decision came as some of her most prominent supporters — including former Vice President Walter F. Mondale — announced they were now backing Mr. Obama. "I was for Hillary — I wasn't against Obama, who I think is very talented," Mr. Mondale said. "I'm glad we made a decision and I hope we can unite our party and move forward." One of Mrs. Clinton's aides said they were told that except for her senior advisers, there was no reason to report to work after Friday, and that they were invited to Mrs. Clinton's house for a farewell celebration. The announcement from Mrs. Clinton was moved to Saturday to accommodate more supporters who wanted to attend, aides said. "Senator Clinton will be hosting an event in Washington, D.C., to thank her supporters and express her support for Senator Obama and party unity," Mr. Wolfson said. Mr. Obama, not waiting for a formal concession from Mrs. Clinton, announced a three-member vice-presidential selection committee that will include Caroline Kennedy, who has become a close personal adviser since endorsing him four months ago. With some Democrats promoting Mrs. Clinton as Mr. Obama's No. 2, his aides said they would move slowly in the search, allowing passions from the bruising primary battles to cool. "Now that the interfamily squabble is done," Mr. Obama said Wednesday evening at a Manhattan fund-raiser, "all of us can focus on what needs to be done in November." Earlier Wednesday, Mr. Obama and Mrs. Clinton crossed paths briefly in Washington. As he left the Capitol, Mr. Obama told reporters, "We're going to have a conversation in the coming weeks." ... Aides to Mr. Obama and Mrs. Clinton said that at least some of Mrs. Clinton's fund-raisers would move to join the Obama campaign. Still, with the realization of defeat still settling in, it appeared that most of her major financial backers were holding back until they got a clearer signal from Mrs. Clinton of her intentions. "I'm being aggressively courted by folks in the Obama campaign," said Mark Aronchick, a Philadelphia lawyer, who is a national finance co-chairman. "I've told them all, 'Everybody relax. Take a deep breath. There's time enough here.'" On Thursday, Mr. Obama planned to head to the southwestern tip of Virginia, in Appalachia, to begin courting voters in a state that traditionally goes Republican but could be a battleground in the fall. Then, he intends to take a few days to strategize privately about the general-election campaign.
I am very much looking forward to the unification of the Democratic Party so that we can all work together and ensure that we take back the White House. I echo Mondale's sentiments, I was for Hillary Clinton and always believed she would make an outstanding President and was never against Barack Obama. Now that he has emerged as the Democratic nominee, I fully endorse his campaign and plan to do whatever I can to help him become the next President of the United States. This election is very important, y'all. It is vital that we make a serious change in leadership or our country is going to suffer further. I have no doubt in my mind that Barack Obama will be able to bring us the change that our country desperately needs. [Source]