Texas Congressman Wesley Hunt ended months of speculation Monday , announcing he is running in the GOP primary for U.S. Senate. He joins Sen. John Cornyn, who is seeking a fifth term, and Texas Attorney General Ken Paxton.

Many political analysts believe Hunt's entry could help force a primary runoff. The Houston congressman spoke with CBS News Texas about his campaign hours after entering what is already a contentious Republican battle.

"This race cannot be about a blood feud between Ken Paxton and John Cornyn," Hunt said. "This race has got to be about Texas."

Hunt says Cornyn is vulnerable

While Cornyn and Paxton have high name recognition from past statewide campaigns, Hunt is not well known outside his home region. His campaign has blitzed the Dallas–Fort Worth market with

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