Former Hewlett-Packard Co. Chief Executive Carly Fiorina said Sunday that the chances she would run for the U.S. presidency in 2016 were "higher than 90 percent" and that she would announce her plans in late April to early May.

Fiorina, speaking on "Fox News Sunday," said she could not yet announce the bid because she was working to establish her team and put together what she described as "the right support" and financial resources.

Fiorina is one of many potential Republican presidential candidates including former Florida Gov. Jeb Bush, Wisconsin Gov. Scott Walker, Florida Sen. Marco Rubio, former Arkansas Gov. Mike Huckabee and New Jersey Gov. Chris Christie.