Two months after leaving office, former Gov. George Pataki announced Wednesday that he is joining a New York City law firm and will specialize in environmental issues.

Pataki, who has been considering a possible run for the 2008 Republican presidential nomination, will be joined at Chadbourne & Parke by his former chief of staff, John Cahill.

Pataki is not ruling out a possible later jump into the presidential campaign, said his spokesman, David Catalfamo.

"I am thrilled to be joining Chadbourne," Pataki said in a written statement. "This is one of the great New York firms, and I look forward to participating in its growth."

Chadbourne's managing partner, Charles O'Neill, said the addition of Pataki and Cahill to the firm "will build upon Chadbourne's growing renewable energy practice."

Pataki, who ousted Democratic Gov. Mario Cuomo in 1994, did not seek re-election last year to a fourth, four-year term.