It's a Democratic demolition derby.

Mayor Bill de Blasio on Thursday tore into Gov. Andrew Cuomo's handling of New York City's needs, a day after the governor faced off against his primary rival Cynthia Nixon in a televised debate.

In the face-off with the left-wing actress-activist, Cuomo had been asked about two issues that have raised tensions with the mayor: funding the Metropolitan Transportation Authority and the increased deployment of state police officers to the city.

In the debate, the governor repeated previous claims that the city in fact owns the subway system and bears responsibility for it—the former is legally true, though the MTA is a gubernatorially-controlled entity and manages the system—and that his officers are simply in place to catch those attempting to evade tolls at state and MTA-controlled bridges and tunnels.

The mayor, however, argued that governor has failed to take the city's best interests into account when setting policy, despite it containing 43% of New York's population. He alluded to several episodes in their ongoing feud, including the governor's sudden decision to shut down the subways system ahead of an anticipated snowstorm, an action taken without notifying City Hall.

"I think it's been part of a pattern of the governor not having a positive vision for New York City and how to work with New York City," the mayor complained. "No other state in America has a single city with a higher percentage of its population than we have in New York City, in New York state. We're almost half of the state's population. Why not start with a positive vision for how to help New York City, for how to work with me as mayor and my administration, and how to get things done for New York City? That's not what I get. I get sudden announcements, and plans that are often made without taking New York City's needs into account."

De Blasio continued to withhold any endorsement in the primary between Cuomo and Nixon, the latter of whom supported him for office in 2013 and hired consultants tied to his campaign. But he praised her performance in the bitter, carping exchange with the incumbent, and slapped at the governor's "tone."

"By the standard of how much experience each one had debating, I would say she won, because her performance far exceeded expectations. I would also say she offered some very powerful views that I thought resonated. And I was surprised at some of the governor's tone," he said. "His tone was negative and I didn't understand how someone who is doing well in the polls and has $30 million [in campaign contributions] and is an incumbent would take such a negative tone."

In a response Thursday afternoon, Cuomo’s team slapped at the governor’s rival and former ally, whom the governor professed to “love” at the debate. In particular, the Cuomo camp highlighted internal emails reporters forced City Hall to release that showed Nixon used her access to de Blasio to pass along complaints about helicopter traffic over Shakespeare in the Park performances and a message from the owner of a Manhattan tea house patronized by "Sex and the City" co-star Sarah Jessica Parker.

"As evidenced by the way he approaches governing, we’re not surprised that the mayor thinks Ms. Nixon has the experience and qualifications to be chief executive,” said campaign spokeswoman Lis Smith, whose romance with former Gov. Eliot Spitzer derailed her appointment to a job in de Blasio’s administration. “Clearly, he and Ms. Nixon—one of his large donors—have a very close relationship, as evidenced by the access she has had to him as mayor, which allowed her to call in favors for her wealthy friends and co-stars. Nice to see she can still call in those favors with him today."