The writing was on the wall after she didn’t qualify for last week’s ABC News debate, and a last-minute campaign on her behalf to allow her in was unsuccessful.
Fiorina looked like she was going to be a contender in the early days of the Republican nomination round but it turned out she peaked far too early.
Fiorina also found herself facing a barrage of criticism from Planned Parenthood and its allies after it turned out that her views of the undercover videos assailing the organisation’s handling of foetal tissue proved inaccurate.
Her campaign was built on the argument that because of her history as a woman with a lengthy private sector history she would be the best person to take on Hillary Clinton in a general election.
The fact she was willing to attack Clinton might see her in the running for the vice presidential nomination.
The 2016 race was Fiorina’s second bid for political office. She previously had a go for California’s Senate seat in 2010, but was knocked out by the incumbent Democratic Senator Barbara Boxer.