(CNN) - Rudy Giuliani made it official Tuesday. He's not running for president.
The former New York City mayor and 2008 Republican presidential candidate made his announcement at a Long Island Association event in New York State.
Giuliani's comments came one week after New Jersey Gov. Chris Christie and former Alaska Gov. Sarah Palin both separately formally declared that they would not make bids for the GOP nomination.
Giuliani, who spent much of this year considering a possible run for the White House, said,"If it's too late for Chris Christie, it's too late for me."
Word of Giuliani's comments was first reported nationally by Politico.