The Wisconsin governor said Obama’s brand of leadership was one of weakness.
"It is so extreme, it is waking people up.”
He said national security will be a major focus during the 2016 race.
“She has had many titles but she has not accomplished much."
Broadway Cares is among those who have cancelled a fundraiser at the New York property.
She hit the GOP field on immigration and the Loretta Lynch confirmation fight.
Jeb Bush, another 2016 contender, has said he won't sign Grover Norquist's pledge.
"I’m doing this because in my world, track record counts,” Fiorina said.
Mary Pat Christie resigned her job with the firm as her husband mulls a 2016 bid.
“How can the American people trust her with another position of power?" he asks.