ALBANY – Environmental lawyer Robert F. Kennedy Jr. is considering a possible run for state attorney general in New York and has talked to top state Democrats about such a race, people familiar with those conversations said yesterday.

Among those consulted by Mr. Kennedy, a son of slain New York senator Robert F. Kennedy, are Senator Clinton and the current attorney general, Eliot Spitzer, said the people familiar with the talks.

They spoke only on condition of anonymity.

Mr. Kennedy did not immediately return telephone messages left for him yesterday at his home and office.

There was no immediate comment yesterday from Mrs. Clinton, and Mr. Spitzer declined comment.

Mr. Kennedy has been active in New York politics and briefly considered running for the Senate seat won by Mrs. Clinton in 2000.The seat was held by the late Daniel Patrick Moynihan, who announced in late 1998 that he would not run for re-election.

“It’s a seat that I would love to occupy,” Mr. Kennedy said at the time, “but I have five young kids.”

Mr. Spitzer, a Democrat, announced last month that he would run for governor in 2006.

A host of other Democrats have already said they may run for the attorney general’s job, including Mr. Kennedy’s brother-in-law, former federal Housing Secretary Andrew Cuomo, and Mark Green, the party’s unsuccessful 2001 candidate for mayor of New York City.

“If Bobby got into the race, he would have to be considered a strong candidate,” said Charlie King, a potential attorney general candidate who unsuccessfully sought the party’s nomination for lieutenant governor in 2002.

Mr. Kennedy has been one of the leading environmental activists in New York state for more than two decades.

He has been a strong advocate for closing down the Indian Point nuclear power plant complex just north of New York City.