Jimmy Breslin, the New York City newspaper columnist and best-selling author who leveled the powerful and elevated the powerless for more than 50 years with brick-hard words and a jagged-glass wit, died on Sunday at his home in Manhattan. He was 88, and until very recently, was still pushing somebody’s buttons with two-finger jabs at his keyboard.

His death was confirmed by his wife, Ronnie Eldridge, a prominent Manhattan Democratic politician. Mr. Breslin had been recovering from pneumonia.

With prose that was savagely funny, deceptively simple and poorly imitated, Mr. Breslin created his own distinct rhythm in the hurly-burly music of newspapers. Here, for example, is how he described Clifton Pollard, the man who dug President John F. Kennedy’s grave, in a celebrated column from 1963 that launched legions of journalists to find their “gravedigger”:

“Pollard is forty-two. He is a slim man with a mustache who was born in Pittsburgh and served as a private in the 352nd Engineers battalion in Burma in World War II. He is an equipment operator, grade 10, which means he gets $3.01 an hour. One of the last to serve John Fitzgerald Kennedy, who was the thirty-fifth President of this country, was a working man who earns $3.01 an hour and said it was an honor to dig the grave.”