Republican presidential candidate Sen. Ted Cruz is joined by former Hewlett-Packard CEO Carly Fiorina during a rally in Indianapolis on Wednesday. Cruz announced he has tapped Fiorina to serve as his running mate.
Republican presidential candidate Carly Fiorina walks the streets of Manchester, NH with Mayor Ted Gastas. Gastas has also campaigned with three other GOP candidates this year.
Brady Carlson/New Hampshire Public Radio
Republican presidential candidate, businesswoman Carly Fiorina speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Sept. 16, 2015.
Mark J. Terrill/AP
Republican presidential hopefuls, retired neurosurgeon Ben Carson and real-estate mogul Donald Trump talk about childhood vaccines during the second Republican presidential debate.
Frederic J. Brown/AFP/Getty Images
Republican presidential candidates take the stage for the first Republican presidential debate last month. On Wednesday, former Hewlett-Packard CEO Carly Fiorina will join them.