Ted Cruz (left) and David Dewhurst (File)

AUSTIN (June 4, 2012)—Lt. Gov. David Dewhurst and Ted Cruz, the two GOP candidates in a runoff for the U.S. Senate, are finalizing their debate plans, and one of them could be in Spanish.

David Dewhurst's campaign says Dewhurst has agreed to two televised debates, one on Belo Corp. television stations and another on public television.

The campaign is still working to set dates.

Dewhurst's opponent, Ted Cruz has suggested five debates before the runoff on July 31.

The Univision television network suggested holding one debate in Spanish.

Hispanics are the fastest growing population in Texas.

Dewhurst agreed.

He perfected Spanish while serving as a CIA officer in Bolivia in the 1970s.

Cruz is the son of a Cuban immigrant, but expressed doubts.

He grew up speaking a mish-mash of Spanish and English and is not fluent.