July 9 (Bloomberg) -- Hillary Clinton is helping Barack Obama fill the coffers of his presidential campaign and the Democratic National Committee, with the two senators headlining fundraising events in New York tonight and tomorrow.

Clinton, who withdrew from the presidential race last month, flew with Obama aboard his campaign plane today from Washington to New York. The two senators sat separately and left the plane on different motorcades.

Donors are being asked to give as much as $33,100 apiece for an event tonight at the Loews Regency Hotel and raise as much as $23,000 for a breakfast tomorrow at the New York Hilton. Obama is soloing at a third event tonight, with each attendee asked to raise $50,000.

Obama, 46, the presumptive Democratic nominee, has had at least two fundraisers every day this week, bringing in more than $4 million on July 7 and yesterday. The events followed his decision June 19 to decline $84.1 million in taxpayer funds for the general election and become the first major-party nominee to privately fund his campaign since the 1974 Watergate-era law provided public financing to presidential candidates.

``Early money matters,'' said former Democratic National Committee Chairman Steve Grossman, who raised money for Clinton and is now on Obama's national finance team. ``The month of July cannot be a dead month. The month of July has to be a huge month.''

Obama was to meet this evening at the Grand Hyatt New York first with the supporters who raised $50,000, and then with donors who gave from $1,000 to $4,600.

On to Loews

From there, he was to join New York Senator Clinton at the Loews Regency for the $33,100-per-person dinner. Tomorrow, he and Clinton plan to have breakfast at a women's event at the New York Hilton, where tickets range from $250 to $2,300 and the hosts were asked to raise as much as $23,000 apiece.

A private reception to raise money to help retire Clinton's campaign debt was scrapped because Senate votes kept Obama in Washington longer than expected, spokeswoman Jen Psaki said. Obama, an Illinois senator, planned to ask dinner guests to give to Clinton and donor cards will be placed at every seat, Psaki said.

At a meeting of Obama and Clinton fundraisers at the Mayflower Hotel last month, Obama said he wanted the finance committee to raise money to pay off Clinton's debt. National finance chairwoman Penny Pritzker made similar comments when she met with the people who raised money for both campaigns.

Clinton reported $22.5 million in debts as of May 30, including $10.3 million in personal loans. She has until the August 25-28 Democratic National Convention in Denver to pay herself back, or else her loan will be treated as a contribution to her campaign.

``It says a lot to those who were formally supporting Hillary that there's a sustained commitment to helping her pay off her debt,'' Grossman said.

To contact the reporters on this story: Jonathan D. Salant in Washington at jsalant@bloomberg.net; Julianna Goldman in New York at jgoldman6@bloomberg.net.

Last Updated: July 9, 2008 18:53 EDT