From the Tucson Weekly:

David Crowe Robles, a local defense contractor, is announcing plans this week to take on Congresswoman [sic] Raul Grijalva in the Aug. 28 Democratic primary.

Crowe Robles, who had been toying with a run for U.S. Senate in the Democratic ticket before Richard Carmona got into the race, isn’t the only Democrat who wants a piece of Grijalva’s hide. Former state lawmaker Amanda Aguirre is also assembling a campaign. Aguirre has Grijalva’s old nemesis, Luis Gonzales, helping her make introductions around Tucson.

With Crowe Robles and Aguirre splitting the Not-Grijalva vote, Grijalva is expected to survive the challenge. Nothing is for certain, however, in what is turning out to be an unusual election year, both in Arizona and around the nation.

Note: We believe the Tucson Weekly meant to say “Congressman Raul Grijalva.”