Cruz to Name Fiorina as Running Mate

In a bid to resurrect his flagging campaign for the Republican presidential nomination, Ted Cruz is expected to name former Hewlett-Packard Co. CEO Carly Fiorina as his running mate Wednesday afternoon in Indiana, according to people briefed on the campaign's plans.

The Texas senator has bet the remainder of his campaign that he can prevail in Indiana�in what has become a must-win state after a series of crushing losses to Donald Trump in the Northeast.

Mr. Cruz, speaking to reporters in Indianapolis Wednesday morning, was coy about the impending announcement when pressed on whether it would be a running mate choice. "We'll be making a major announcement at 4 p.m.," he said. "If we were making an announcement at 4 p.m., it wouldn't make sense to make an announcement at 10 a.m."

For Mr. Cruz, announcing Mrs. Fiorina as his running mate is a move engineered to change the focus of the Republican primary campaign to his new ticket and away from Mr. Trump's runaway victories in the five Northeastern state primaries Tuesday.

Write to Reid J. Epstein at Reid.Epstein@wsj.com