SAN ANTONIO ? Becky Whetstone has something to say to people who think they know why she’s running for Congress: Enough already with the jilted-wife-hellbent-on-revenge theory.

It’s true that her former husband has the congressional seat she is seeking. It’s also true that last year she announced she was writing a tell-much book titled “The Congressman’s Wife.”

Despite all that, she insists, she’s not running to get even with her ex, Democratic Rep. Charlie Gonzalez.

“I’m telling people that it’s not the vengeful wife scenario,” said Whetstone, “and if people choose not to believe what I’m saying, then I can’t do anything about that.”

Texans will nominate candidates in 32 congressional districts in Tuesday’s primary — the first test of a redistricting plan drawn up by a Republican-controlled House over Democratic protests. The process that led to the redistricting was so contentious that 51 House Democrats fled to Ardmore, Okla., in May to bust a quorum, and 11 Senate Democrats went to Albuquerque, N.M., during the summer to block votes in their chamber.

Gonzalez, 58, has no opponents in the Democratic primary for the 20th District and Whetstone is running as an independent, so she does not compete in a primary. They’ll face each other and Republican Roger Scott, who also is unopposed, in the November general election.

Whetstone, 45, is a first-time candidate with only $250 in campaign funds and no staff.