Ricardo Sanchez

Lt Gen Ricardo SanchezFormer Lt. Gen. Ricardo Sanchez, who oversaw coalition forces in Iraq before retiring in the aftermath of the Abu Ghraib prison abuse scandal, is running for Senate in Texas as a Democrat.

Two Democratic sources with direct knowledge of Sanchez's plans said he will announce his run Wednesday on Facebook, then file campaign paperwork in San Antonio. The sources would speak only on condition of anonymity before the announcement.

Sanchez, 59, was raised in Rio Grande Valley and lives in San Antonio.