Political operatives from New York to Washington, D.C., are buzzing about whether former New York Mayor Rudy Giuliani (R) is getting ready to launch a campaign against Sen. Kirsten Gillibrand (D-N.Y.) next year.New York media outlets reported Thursday afternoon that Giuliani has decided not to run for governor in 2010 but that he is still mulling a Senate bid. A report in the New York Daily News, citing unnamed sources, said Giuliani had decided to run for Senate. But a Giuliani spokeswoman said in a statement that no decision has been made. “Rudy has a history of making up his own mind and has no problem speaking it,— spokeswoman Maria Comella said. “When Mayor Giuliani makes a decision about serving in public office, he will inform New Yorkers on his own.—If he runs, this would be the second time Giuliani has sought this Senate seat. He mounted a brief campaign for what was then an open seat in 2000 but ended his campaign after being diagnosed with prostate cancer.