It looks like Colorado's Ken Salazar might not be the highest-ranking Hispanic member of the Obama Cabinet after all. The secretary of the interior nominee, who plans to step down from the Senate if confirmed later this month, was one of three Hispanics tapped for a Cabinet post -- along with New Mexico Gov. Bill Richardson at Commerce and Rep. Hilda Solis of California at Labor -- until Richardson withdrew his name from consideration on Sunday because of an ongoing federal "pay-for-play" probe involving a state contractor. A veteran California congressman, Xavier Becerra, tops the list of potential replacements for Richardson, the San Antonio Express-News reports Wednesday.