Transcript for Ted Cruz Picks Carly Fiorina as Running Mate
And as we came on this evening, we told you about Ted Cruz and a new move from him. Choosing a vp candidate, even though he hasn't secured the nomination, and won no primaries last night. Late today, naming his pick for vice president, Carly fiorina. But we remember what she said about Cruz, while running against him. Ted Cruz is just like any other politician. He says one thing in Manhattan, he says another thing in Iowa. He says whatever he needs to say to get elected. We sat down with Carly fiorina just moments ago and asked her about what she said, what's changed her mind. And here tonight, ABC's David Wright now. Carly! Carly! Reporter: It's his last ditch effort to stop Donald Trump and save his campaign. My friend, and the next vice president of the United States, Carly fiorina. Reporter: An extraordinarily rare move. Ted Cruz picked a running mate before he's even won the nomination. The former CEO of Hewlett-Packard, Carly fiorina. He is a principle fighter. He is a man of character and conviction. Reporter: But she and Cruz haven't always seen eye to eye. Just a few months ago, you said, "Ted Cruz is just another politician. He sails whatever he needs to say to get elected." What's changed? We're in the Hoosier state. And in a heated basketball game, sometimes players foul each other. It was in the heat of a political campaign. This is a man I've gotten to know who will do what he says, who sails what he means and who keeps his promises. Reporter: Fiorina has already been out there campaigning for Cruz, and now, you can expect a lot more of that. A strong woman, willing to take on Donald Trump. David? David Wright tonight. David, thank you.
This transcript has been automatically generated and may not be 100% accurate.