Giuliani campaigned with Fiorina and Republican Congressional candidate Van Tran in Westminster's Little Saigon Monday, picking up the thread of Fiorina's campaign against Boxer as a career politician.
"Do we need people that have independent experience not part of the political process for 10, 15, 20 years? Who are not only worn down by it but in the case of Barbara Boxer - she wears us all down," he said.
The most recent Eyewitness News poll showed Boxer leading by a narrow three-point lead, with the margin of error placing her in a statistical tie with Fiorina with only three weeks left until the election.
Fiorina responded to Boxer's attack ads, which blame the former head of Hewlett Packard for outsourcing more than 30,000 jobs as CEO and sending them to foreign countries like China.
"It is the height of bypocrisy to attack me for outsourcing jobs when it is her policies that drive companies of all sizes to take jobs out of this state," she fired back.
Fiorina said Boxer has not been held accountable as a 28-year politician. She said her record as a business executive taught her to produce results, not just what she called political slogans.
Obama's planned campaign appearance for Boxer this week highlights the importance of Boxer's reelection to Democrats hoping to retain their slim majority in the Senate.