Transcript for Ted Cruz Drafts Carly Fiorina as His Running Mate
To the race for the white house. Shaking up the race. The republican nominee, but Ted Cruz is hoping his hail Mary vp move can shake up the race. It's a long shot move by Ted Cruz to try to save his campaign. My friend and the next vice president of the United States, Carly fiorina. Reporter: Cruz is tapping definitely comfortable as his vice presidential running mate even though he's way behind and the primaries aren't even over. I am prepared to stand by his side. To defeat Donald Trump, to defeat Hillary Clinton. Reporter: As the presidential candidate fiorina battled with trump. I think women all over this country heard very clearly what Mr. Trump said. Reporter: Since dropping out she's campaigned a lot with Cruz and formed a bond with his family. Even singing to his daughters. âª I know two girls that I just adore âª âª I'm so happy I can see them more âª Reporter: But Donald Trump ahead by more than 400 delegates mocked the move. The first presidential candidate in the history of this country who's mathematically eliminated from becoming president who chose a vice presidential candidate. Okay. Reporter: And after his Tuesday sweep of the northeast, trump is thing the next battleground state. I'm not playing games with Indiana. Reporter: Earlier in Washington, trump showed his serious side. Outlining his foreign policy agenda in a formal address. America is going to be strong again. America is going to be reliable again. Reporter: Trump used his speech to outline a foreign policy vision that includes investing more in a stronger U.S. Military but also scaling back U.S. Involvement around the world. It was a speech, George, that was highly critical of the foreign policy of both Barack Obama and George W. Bush. Yes, it was, okay, Jon Karl, thanks very much.
This transcript has been automatically generated and may not be 100% accurate.