“How on earth do you not have an opinion on aid to American cities and states?” Mr. de Blasio said during his daily press briefing.

He compared Mr. Trump’s lack of response to the financial shortfall facing New York City in particular to President Gerald Ford’s dismissal of the city during the fiscal crisis of the 1970s.

“There was that famous Daily News cover that said ‘Ford to City: Drop Dead,’” Mr. de Blasio said. “So my question is, Mr. Trump, Mr. President, are you going to save New York City or are you telling New York City to drop dead? Which one is it?”

The mayor announced last week that New York City would have to cut more than $2 billion in municipal services over the next year.