William Kristol, one of the nation's leading conservative writers and a vigorous supporter of the Iraq war, will become an Op-Ed page columnist for The New York Times, the newspaper announced Saturday.

Kristol will write a weekly column for The Times beginning Jan. 7, the newspaper said. He is editor and co-founder of The Weekly Standard, an influential conservative political magazine, and he appears regularly on Fox News Sunday and the Fox News Channel. He was a columnist for Time magazine until that relationship was severed this month.

Kristol, 55, has been a fierce critic of The Times. In 2006, he said that the government should consider prosecuting The Times for disclosing a secret government program to track international banking transactions.