Thompson Trades Jabs With Quinn The feminist activist Sandra Fluke, third from right, endorsed Christine C. Quinn for mayor. There are still multiple people running for mayor of New York, but two of the front-runners, Christine C. Quinn and William C. Thompson Jr., have turned their focus, and their fire, on each other. It began on Tuesday, when The New York Times reported on a dubious $150 million investment deal in Northern Ireland that occurred when Mr. Thompson was the city's comptroller. The investment proved to be a bad bet, but a friend of and donor to Mr. Thompson still collected $250,000. So at a news conference later, Ms. Quinn questioned Mr. Thompson's fiscal management skills, telling reporters it was "yet another example of things in the comptroller's office falling through the cracks." Within the hour, Mr. Thompson hit back. While he did not address the investment deal directly, he said that he was proud of his record as comptroller in presiding over the pension fund. He went on to attack Ms. Quinn's record of financial stewardship, alleging that during her tenure as City Council speaker, she "was using a corrupt slush fund to park taxpayer dollars in phony charities to buy political support" and dividing up the city budget to reward friends and punish foes. Mr. Thompson did not let up: on Wednesday morning, his chief campaign strategist, Jonathan Prince, asked supporters in an e-mail to sign a petition demanding that Ms. Quinn release legal records related to the slush fund scandal. "She is refusing to release the documents her city-funded lawyers used to keep her from being indicted," Mr. Prince wrote. But Ms. Quinn, speaking later Wednesday morning at an event where she was endorsed by Sandra Fluke, a prominent feminist activist, dismissed Mr. Thompson's calls, saying she had released "everything relevant" five years ago. She, in turn, swung back at Mr. Thompson, citing a New York Post article on Wednesday about the Battery Park City Authority, of which Mr. Thompson was recently the chairman, distributing $1.1 million to nonprofit organizations whose board members contributed $75,000 to his campaign. One of the groups is based in Westchester County. What is the relevance to giving a million dollars to groups as far away as Westchester? Ms. Quinn said. I think he has to answer that question today.