Washington ? Rudy Giuliani emerged as the winner in the Republican presidential money contest this quarter, raising more and spending less than both of his leading rivals.

Mitt Romney tapped his personal wealth for a $6.5 million loan and John McCain’s campaign was seriously considering public financing to revive his all-but-broke presidential bid.

As the campaigns head into a new round of fundraising and spending, Giuliani has about $15 million in the bank for the primary contests, Romney has $12 million and McCain has just $2 million.

For Romney, whose assets are estimated between $190 million and $250 million, one of every $5 of his revenue has come from his personal wealth.

Romney increased his number of donors by nearly 50,000 for a total of more than 80,000 for the year so far. McCain reported a total number of contributors of 72,000 for the first six months. The Giuliani campaign said he doubled his number of donors this quarter, bringing his total to about 56,000.

Key fundraising numbers:

l Giuliani raised $17 million with about $15 million devoted to the primary and about $2 million for the general election. Candidates can’t use general election money unless they win their party’s nomination. In six months, he has had revenues of nearly $32 million and has spent about $17 million.

l Romney raised $14 million, all primary election money. He lent himself an extra $6.5 million. His six-month revenues are about $44 million and his expenditures are about $32 million.

l McCain raised $11.2 million with about $10.4 million devoted to the primary. His overall revenues are about $26 million; the campaign spent about $24 million. In the first quarter, the campaign reported a debt of nearly $2 million. Aides would not comment on where his debt may stand.

Combined, the leading three Republicans raised roughly $42 million in primary and general election money in the second quarter, a sum dwarfed by the $68 million top Democratic candidates – Hillary Rodham Clinton, Barack Obama and John Edwards – brought in during the same period.