Transportation Alternatives -- a group that advocates cycling and walking as alternatives to driving -- has leveled an attack against two lawmakers who oppose Mayor Michael R. Bloomberg's plan to charge an $8-a-day fee for driving in Manhattan south of 86th Street.The two lawmakers, State Assemblyman Richard L. Brodsky of Westchester County and City Councilman David I. Weprin of Queens, both Democrats, have tried to portray Mr. Bloomberg's congestion pricing plan as a hidden tax on low- and middle-income residents. Transportation Alternatives has fought back, releasing a report [pdf] arguing that the vast majority of working-class people in New York City use public transit.Now Transportation Alternatives is accusing Mr. Brodsky and Mr. Weprin of being insincere in their criticisms. "While these legislators paint themselves as populists representing middle and low-income New Yorkers, the money trail clearly leads back to the parking lobby," said Paul Steely White, executive director of Transportation Alternatives.City Councilman David I. WeprinCiting public records, Transportation Alternatives said that Mr. Brodsky "has received at least $16,700 dollars from parking garage owners and parking associations since 2002 -- 1,000 percent more than any of his state colleagues," and that Mr. Weprin, "has received at least $40,650 from parking special interest groups since 2002."In a statement, Transportation Alternatives added, "Furthermore, Vincent Petraro, the executive director of the Metropolitan Parking Association, is the chair of the legislative action committee of the Queens Chamber of Commerce, which had authored the only report denouncing congestion pricing before Assemblymember Brodsky's recent piece."On Monday, Mr. Brodsky had released a study, based on a series of Assembly hearings, that criticized Mr. Bloomberg's congestion pricing plan as unworkable.With only days before a July 16 deadline by which the State Legislature would have to act for the city to be eligible for $500 million in federal grants to implement congestion pricing, the chances of Mayor Bloomberg's proposal becoming law look iffy.Mr. Brodsky, reached by telephone, gave this response: I assume the reason they're attacking me personally is that they can't criticize the report. Let's assume that I'm the worst person in the world. We still have to deal with whether this is a regressive tax and whether there are privacy implications. I'm not going to respond to personal attacks at all.In a telephone interview, Mr. Weprin, who intends to run for city comptroller in 2009, called the report "a cheap shot." He said of the contributions from parking interests: That's ridiculous. That's such a small percentage of my overall campaign contributions. Much of that comes from a particular family that did an event for me that happens to be in the parking business. Those aren't recent contributions. I've raised over $1 million -- a very small percentage from parking interests. Congestion pricing wasn't even on the radar screen when I got these contributions.