Updated

The top Democrat in the U.S. Senate apologized on Saturday for comments he made about Barack Obama's race during the 2008 presidential bid.

Senate Majority Leader Harry Reid of Nevada described then-Sen. Barack Obama as "light skinned" and "with no Negro dialect." Obama is the nation's first African-American president.

"I deeply regret using such a poor choice of words. I sincerely apologize for offending any and all Americans, especially African-Americans for my improper comments," Reid said in a statement released after the excerpts were reported on the Web site of The Atlantic.

"I was a proud and enthusiastic supporter of Barack Obama during the campaign and have worked as hard as I can to advance President Obama's legislative agenda."

In a written statement Saturday, Obama said he accepted Reid's apology "without question because I've known him for years, I've seen the passionate leadership he's shown on issues of social justice and I know what's in his heart."

"As far as I am concerned, the book is closed," he added.

Reid spokesman Jim Manley says the Senator reached out to other Democratic and African-American leaders, including the Rev. Al Sharpton, NAACP Chairman Julian Bond and others.

"About a dozen in all," Manley said.

In Washington, Reid obtained supportive statements from House Majority Whip James Clyburn of South Carolina, the African-American in the House and at home, from Steven Horsford, the Nevada Senate Majority Leader.

Reid remained neutral during the bitter Democratic primary that became a marathon contest between Obama and then-Sen. Hillary Rodham Clinton, whom Obama tapped as the United States' top diplomat after the election.

Reid's comments are included in a book set to be published on Monday. "Game Change" was written by Time Magazine's Mark Halperin and New York magazine's John Heilemann; the pair describe the book in interviews during Sunday's "60 Minutes" on CBS.

Reid, facing a tough 2010 re-election bid, needs the White House's help if he wants to keep his seat. Obama's administration has dispatched officials on dozens of trip to buoy his bid and Obama has raised money for his campaign.

Recognizing the threat, Reid's apologies also played to his home state: "Moreover, throughout my career, from efforts to integrate the Las Vegas strip and the gaming industry to opposing radical judges and promoting diversity in the Senate, I have worked hard to advance issues."

Even before his ill-considered remarks, a new survey released Saturday by the Las Vegas Review Journal showed him continuing to earn poor polling numbers. In the poll, by Mason-Dixon Polling & Research, Reid trailed former state Republican party chairwoman Sue Lowden by a 10 percentage points, 50 percent to 40 percent, and also lagging behind two other opponents.

More than half of Nevadans had an unfavorable opinion of Reid. Just 33 percent of respondents held a favorable opinion.

Reid's comments published in the book were not the only juicy tidbits making headlines Saturday.

The Atlantic posted excerpts from the book that included a comment Bill Clinton made about Obama to then Sen. Ted Kennedy saying, "A few years ago this guy would have been getting us coffee."

His wife, Hillary, initially wanted to make a big deal about Obama's previous use of drugs, but aides very much disagreed with this decision and she ultimately changed her position on it, too.

The Associated Press contributed to this report.