Question: The failed Escobar Rebellion of 1929 challenged the political power of what political leader, who had been the interior minister under Mexican President Alvaro Obregon?  
Sentence (from "José Gonzalo Escobar"): General Don José Gonzalo Escobar (1892-1969) was an officer in the Mexican Army and leader of the failed Escobar Rebellion in 1929, which challenged the political power of Plutarco Elías Calles .
Relevant evidence: Yes