Former Hewlett-Packard CEO Carly Fiorina will launch her presidential campaign on May 4, the Wall Street Journal reports. Fiorina will join Senators Ted Cruz, Rand Paul and Marco Rubio who have already declared.  Dr. Ben Carson and former Arkansas governor Mike Huckabee are expected to make known their 2016 plans the same week as Fiorina's announcement.

Fiorina has never held elected office. She was the Republican nominee for California's 2010 Senate race, losing by 10 point to incumbent Democrat Barbara Boxer. Fiorina has not made much of an impact in early Republican nomination polling, averaging about 1%.