The labor-aligned advocacy group Citizen Action of New York last year retained Mercury Public Affairs to help lobbying for publicly financed campaigns, records filed with the Joint Commission on Public Ethics show.

The consultant firm is being retained by the organization for $3,500 a month, with a consulting services agreement having started Nov. 1 of last year.

Citizen Action so far has paid Mercury $7,000, according to the bimonthly report filed with JCOPE.

The contract ends Jan. 31, but can be extended on a month-by-month basis.

Citizen Action last year reported $192,968 in funding from the pro-public financing group Friends of Democracy, the group co-founded by Jonathan Soros.

While the documents filed with JCOPE do not specify what the group is being retained to do, Mercury Public Affairs spokesman Michael McKeon confirmed it was to lobbying specifically on “the Fair Elections issue.”

McKeon, a former aide to Gov. George Pataki, was part of the Republicans for Cuomo effort in 2010.

McKeon also served as a spokesman for the business-backed and now-defunct Committee to Save New York.

Cuomo is expected to include financing for publicly funded campaigns in his budget proposal on Tuesday.