Metro

Unions in Street fight

The city’s powerful municipal unions are set to march on City Hall today with Occupy Wall Street demonstrators, even as the two allies suffered a setback when a federal judge ruled cops can commandeer city buses to round up protesters.

Yesterday, the anti-Wall Street demonstrators joined members of the DC 37 workers union — which represents many non-uniformed city agency workers — on the steps of City Hall to protest union layoffs.

Today’s planned march, from City Hall to Zuccotti Park, will include the city teachers union, the UFT, as well as building workers from Local 32BJ, health-care workers for 1199 SEIU and the Transport Workers Union Local 100.

The march follows a federal judge’s rejection of a TWU bid to bar cops from commandeering city buses to ship busted demonstrators to court.

MTA buses were forced to take 744 protesters arrested on the Brooklyn Bridge on Saturday.

US District Judge Paul Engelmayer noted that the city bus-operator manual states that drivers may have to assist police.