William Heine

William Heine, an attorney for VIP, claimed that the tax forms are inaccurate and said the organization would file amended returns to reflect a separation of the two groups.

Officials for both the union and the Voter Improvement Program declined comment, referring questions to VIP lawyer Bill Heine, who would only comment via e-mail.

Heine denied that VIP had spent money on candidates but acknowledged he had not reviewed the campaign finance reports filed by the Federation of Labor.

"VIP does not make contributions to candidates," Heine wrote in an e-mail.