WASHINGTON -- New York Sen. Chuck Schumer Thursday reported he has $22 million in cash on hand for his re-election campaign next year, giving prospective Republican challengers something to ponder as they consider a race against him.

Schumer, a Brooklyn Democrat seeking a fourth term in the Senate, raised $2.5 million from July through September, and spent just $315,172, according to his third-quarter filing with the Federal Election Commission.

Jessica Proud, spokeswoman for the New York State Republican Committee, said state chairman Ed Cox is continuing to talk with potential GOP candidates, and that Schumer's campaign fund is part of the conversation.

"Anyone that runs for statewide office in New York has to be able to raise money. It's a very expensive media market here," Proud said. "There is no illusion about that."

Schumer is on a track to become the Senate Democratic leader in 2017, should he be re-elected as expected, after current Senate Minority Leader Harry Reid (D-Nev.) retires.

Meanwhile, Suffolk County Presiding Officer DuWayne Gregory, the Democrat running against Rep. Peter King (R-Seaford) in the 2nd Congressional District on the South Shore, reported he raised $38,236 in the third quarter and has $54,345 in the bank.

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King, seeking his 13th term in the House, raised $156,725 and has $2.9 million in cash on hand, his filing said.

In the 3rd Congressional District, Rep. Steve Israel (D-Huntington) raised $359,417 and has banked $973,963, said spokeswoman Caitlin Girouard. Manhasset resident David Gurfein, president of TRUE Health & Wholeness with three health facilities in the Virginia suburbs of Washington, D.C., reported he raised $131,463 and has $128,376 in cash in an exploratory committee to run as a Republican against Israel next year.

In the 4th Congressional District in Nassau County, first-term Rep. Kathleen Rice (D-Garden City) raised $428,407 and has $492,649 on hand, her filings said.

Sen. Kirsten Gillibrand (D-N.Y.), up for re-election in 2018, reported she collected $263,800 in contributions and has $1.9 million in the bank.