In an effort to cast himself as independent of the influence of money on politics, Senator Barack Obama often highlights the campaign contributions of $200 or less that have amounted to fully half of the $340 million he has collected so far.
But records show that a third of his record-breaking haul has come from donations of $1,000 or more - a total of $112 million, more than the total of contributions in that category taken in by either Senator John McCain, his Republican rival, or Senator Hillary Rodham Clinton, his opponent in the Democratic primaries.
Behind those large donations is a phalanx of more than 500 Obama "bundlers," fund-raisers who have each collected contributions totaling $50,000 or more. Many of the bundlers come from industries with critical interests in Washington. Nearly three dozen of the bundlers have raised more than $500,000, including more than a half-dozen who have passed the $1 million mark and one or two who have exceeded $2 million, according to interviews with fund-raisers.
While his campaign has cited its volume of small donations as a rationale for his decision to opt out of public financing for the general election, Obama has worked to build a network of big-dollar supporters from the time he began contemplating a run for the U.S. Senate.
He tapped into well-connected people in Chicago before the 2004 Senate race, and, once elected, set out across the country starting in 2005 to cultivate some of his party's most influential money collectors.
He courted them with the savvy of a veteran politician, through phone calls, meals and one-on-one meetings; he wrote thank-you cards and remembered birthdays; he sent them autographed copies of his book and doted on their children.
The fruit of his efforts has put Obama's major donors on a pace that almost rivals the $147 million that President George W. Bush's Pioneer and Ranger network raised in $1,000-and-larger contributions in 2004 during the primary season.
Given his decision not to accept public financing, Obama is counting on his bundlers to help him raise $300 million for his campaign for the general election and another $180 million for the Democratic National Committee.
An analysis of campaign finance records shows that about two-thirds of his bundlers are concentrated in four major industries: law, securities and investments, real estate and entertainment. Lawyers make up the largest group at about 130, with many working for firms that also have lobbying arms. At least 100 Obama bundlers are top executives or brokers from investment businesses - nearly two dozen work for financial titans like Lehman Brothers, Goldman Sachs and Citigroup. About 40 others come from the real-estate industry.
The biggest fund-raisers include people like Julius Genachowski, a former senior official at the Federal Communications Commission and a technology executive who is new to big-time political fund-raising; Robert Wolf, president and chief operating officer of UBS Investment Bank; James Torrey, a New York hedge fund investor; and Charles Rivkin, an animation studio head in Los Angeles.
"It's fairly clear that this is being packaged as an extraordinary new kind of fund-raising, and the Internet is a new and powerful part of it," said Michael Malbin, executive director of the Campaign Finance Institute. "But it's also clear that many of the old donors are still there and important."
The care and feeding of top Obama fund-raisers underscores their significance to his campaign. Members of his National Finance Committee who fulfill their commitment to raise at least $250,000 are being rewarded with trips to the Democratic National Convention in Denver.
Finance committee members participate in biweekly conference calls with top campaign officials. The fund-raisers meet quarterly, often with Obama dropping in. He lingered after the meeting last month in Chicago, telling his staff he wanted to thank every person in the room. Some fund-raisers who knocked on doors for Obama in places like Iowa, Pennsylvania and Indiana got to spend time with Obama backstage before and after speeches on primary nights.
His fund-raisers invariably say their support for him is not rooted in any kind of promise of access but in their belief in him.
"This is about Barack Obama and changing the direction of our country," said Jonathan Perdue, a business consultant in Mill Valley, California, who has raised more than $250,000 for Obama's campaign.
Obama has pledged not to accept donations from federally registered lobbyists or political action committees. But some top donors clearly have policy and political agendas. Hedge fund executives, for example, have bundled large sums for Obama at a time their industry has been looking to increase its clout in Washington.