NEW YORK — In the surprisingly close race for New York’s 9th district, the campaign of Democratic state Assemblyman David Weprin trumpeted its substantial fundraising advantage over Republican Bob Turner.

With less than two weeks to go before the Sept. 13 special election to replace ex-Rep. Anthony Weiner (D), the Weprin campaign said Thursday that it expected to have raised $550,000 by midnight Friday.

According to Federal Election Commission records, Weprin raised more than $450,000 from July 1 to Aug. 24. Turner raised more than $203,000, including a $65,000 loan from the candidate to the campaign, during the same period.

“I’m very grateful for this outpouring of financial support,” Weprin said in a statement. “I intend to ride this momentum all the way to victory on September 13th.”

Turner, a retired television executive, told Roll Call earlier this week that he expected to be outspent by a 3-to-1 ratio, but he still predicted victory. A poll commissioned by the Republican was released Thursday showing the race to be a dead heat.

A nonpartisan poll taken by Siena College in early August showed Weprin up by 6 points.

National Democrats hailed Weprin’s monetary edge.

“Following a strong endorsement from the New York Times and with a commanding advantage in financial resources, it’s clear that David Weprin is well positioned to make the stark contrast with Bob Turner’s radical agenda to slash Medicare and Social Security,” Democratic Congressional Campaign Committee spokesman Josh Schwerin said in a statement.

But national Republicans were keen on emphasizing the poll released Thursday.

“David Weprin is a career politician who is losing support fast because New Yorkers oppose his tax-and-spend agenda, which will hurt our economy,” National Republican Congressional Committee spokesman Tory Mazzola said. “Even in this Democratic stronghold, voters are abandoning Weprin for Bob Turner … and, as a result, Nancy Pelosi’s party could lose this historically safe seat.”

At an event Tuesday in front of the national debt clock in Manhattan, Turner was asked how he could win in a district where Democrats have a registration advantage of more than 3-to-1 over Republicans.

“I think people will finally step up and say, ‘Enough is enough.’” Turner said. “And they’re ready to do it. Polls already indicate that. This is a winnable election.

“We’re closing in,” he added. “I expect we’re going to be on the victory podium on Sept. 13.”

Roll Call Politics rates this race Likely Democratic.