Ms. Feinstein, wealthy in her own right and a formidable fund-raiser, is expected to spend $15 million.

He was a formidable fund-raiser, too: in his latest campaign finance filing, his re-election committee had more than $500,000.

And they have said that whatever the president's poll numbers may be, he remains a formidable fund-raiser.

Mr. Gingrich is a formidable fund-raiser in part because of his ability to tap into the corporate community for donations.

Nonetheless, the senator is among the most formidable fund-raisers in her party and could raise a large amount of money quickly if needed.

They argue that he is a formidable fund-raiser, especially in wealthy, populous California, and will have more money than most candidates to spend on broadcasting.

Other industries have opened their wallets to Senator Clinton, a formidable fund-raiser.

Within his own district, he is a formidable fund-raiser, one of the best in Congress.

The mayor was a formidable fund-raiser for the Republican convention here in 2004.

The expectation is that because he is such a formidable fund-raiser, he will have well over $10 million to pour into the May 21 primary.