(CNN) - In a special election to take place just two days after the 10th anniversary of 9/11, the GOP candidate running to fill former Rep. Anthony Weiner's seat attacked his Democratic opponent for supporting the "Ground Zero mosque" last year.
Republican businessman Bob Turner released a TV ad Thursday, juxtaposing video of the burning World Trade Center with images of President Barack Obama. Turner blasted his opponent, Democrat David Weprin, for siding with the president on the issue.
"It's been ten short years. Everyone remembers," the ad says, with dreary music playing over images of smoke billowing from the World Trade Center. "Some, though, want to commemorate the tragedy by building a mosque on Ground Zero."
The ad then says the president "thinks it's a good idea," as a photo of a smiling Obama appears next to a photo of a mosque, as well as video of the Twin Towers on 9/11.
"And so does Congressional candidate David Weprin," the ad says.
The ad then plays a soundbite of Weprin saying in a 2010 debate that he supported those who wanted to build the Cordoba House, an Islamic center and mosque two blocks from Ground Zero. Protests over the project spilled over into a national controversy last summer.
"But Bob Turner says 'no'," the ad says. "He knows Weprin and Obama are wrong."
Weprin responded to the ad Thursday in a statement and called Turner's actions "shameful."
"As we approach the tenth anniversary of 9/11, it's shameful that Bob Turner is trying to use the tragedy for his own political gain," Weprin said. "I knew people who lost their lives that day and Bob Turner dishonors their memory by politicizing the attacks on New York."
On Friday, the Uniformed Fire Officers Association also came out against the spot.
"Robert Turner's commercial is very insensitive. We object to anyone exploiting the pain of thousands of families who lost loved ones on 9/11 to score political points," said Captain Alexander Hagan, president of the group, in a statement.
Turner and Weprin are in a heated race to represent New York's 9th congressional district, which covers parts of Brooklyn and Queens. The seat was vacated in June when Weiner stepped down amidst scandal.
According to a poll released by the Siena Research Institute Wednesday, Weprin leads the race by six points–a narrow margin for a solidly democratic district. If Turner wins on Sept. 13, he'll become the second House Republican in the current New York City delegation.