The City Council is cracking down on politicians' nonprofits and tweaking the city's campaign finance law in what may be a move to get rid of some personal pet peeves. NY1's Courtney Gross filed the following report.

Days before taking office, Mayor Bill de Blasio started a nonprofit group to push his agenda called The Campaign for One New York. It accepted thousands of dollars in donations from people who were doing business or trying to do business with City Hall.

It created controversy and sparked several federal investigations into how the de Blasio administration does business. 

Now, the council wants to make sure that it's not repeated.

"I believe this is the first of its kind legislation in the country to restrict these types of organizations," said City Councilman Brad Lander of Brooklyn.

It's considering legislation to ban large contributions from people who do business with the city to similar groups in the future.

The mayor's office supports the idea in principle.

"Speaking on behalf of the administration only, we are generally supportive of the intent of this bill," said Henry Berger, special counsel to the mayor.

Along with that measure, the council heard testimony on 13 other pieces of legislation Monday that revise how the city's campaign finance board oversees elections.

"This important piece of legislation is accompanied by several poison pill measures that would significantly weaken the CFB's oversight of the matching funds program," said Amy Loprest of the New York City Campaign Finance Board.

The changes are mostly administrative, but they are also seen as the product of individual council members' personal grievances with the board.

"It's too complicated for candidates who want to do that right thing," said City Councilwoman Helen Rosenthal of Manhattan.

One of the bills would expand what council members could spend their campaign cash on, including anything that helps support the "duties of public office."

"The package of bills being proposed amount to a huge step backwards and would greatly weaken what is considered the best campaign finance system in New York and the United States," said Dominic Mauro of Reinvent Albany.

The City Council is expected to move forward with this legislation quickly. It hopes to approve it before the end of the year.