[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/09/14/art.gillibrand.gi.jpg caption="Gillibrand's finance director fired off an e-mail to supporters asking them to open their wallets to help fend off 'one of the biggest attack dogs' in the GOP."]
(CNN) - With rumors flying that Rudy Giuliani might make a run at Kirsten Gillbrand's Senate seat next year, the New York Democrat's campaign isn't wasting a chance to raise some cash off the polarizing former mayor.
Just hours after the New York Post reported that Giuliani is being urged by state Republicans to enter the Senate race, Gillibrand's finance director Russ Offinger fired off an e-mail to supporters on Monday asking them to open their wallets to help fend off "one of the biggest attack dogs" in the GOP.
"From day one of her appointment to replace Hillary Clinton, Republicans have set their eyes on this seat," Offinger said in the e-mail. "Now they are prepared to run one of the biggest attack dogs in the Republican Party against Kirsten. "
Calling Gillibrand "a leading progressive voice in the Senate," the note urges readers to click on a link to donate to the campaign.