Rogelio Montemayor, the former director of the Mexican state oil company, surrendered to authorities in Houston today to face extradition back home on charges stemming from a campaign funding scandal. In an interview before appearing in court, Montemayor said he would rather surrender to U.S. authorities because the process in Mexico has become too politically tainted. The allegations that $166 million went from oil company Pemex to the campaign of presidential candidate Francisco Labastida in 2000 -- dubbed "Pemexgate" -- have emerged as a major scandal in Mexico. "I resolve to prove my innocence," Montemayor said in the interview, explaining...