By Daniel Strauss - 08/29/12 02:42 PM EDT
Critics of the speech said that Christie did not focus enough on Romney and attacking President Obama, and instead spent too much time on his own story. Giuliani, in an interview with CNN, also on Wednesday morning, said that the speech wasn't just about Romney.
"I think his role here was not so much just to support Mitt Romney," Giuliani said. "His role as the keynote speaker was to set the background for what this campaign is going to be about."
Giuliani also compared Christie's speech to Ann Romney's speech, which came right before his.
"She's talking about love between a man and a woman, love between a husband and wife," Giuliani said. "What the governor was talking about was how a public figure should conduct himself."