Democrats also have high hopes for Pennsylvania, where State Treasurer Bob Casey is leading incumbent Republican Sen. Rick Santorum in the polls. Casey reported raising $4.1 million in the third quarter, bringing his total for the campaign to almost $15 million. He had $3.7 million in cash as of Sept. 30.

Santorum's campaign said his report isn't yet available. As of the second quarter, the senator had raised almost twice as much as Casey.

New Jersey Sen. Bob Menendez is one of the few Democrats locked in a tight race to keep his seat in the Nov. 7 elections. Menendez, who was appointed by Gov. Jon Corzine to fill the seat he vacated in January, is running against New Jersey state senator Tom Kean Jr.

Menendez raised $1.6 million in the third quarter, bringing the total for his campaign to $10.5 million, according to his filing. He had $5.5 million in cash as of Sept. 30. Kean raised $1.8 million this quarter and has $3.2 million on hand, according to his campaign. Menendez had a 3-1 cash advantage as of June.

Candidates for the U.S. House of Representatives and Senate must file their quarterly campaign reports by Oct. 15. Some campaigns are releasing their numbers early.

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E-mail: kjensen@Bloomberg.net