Mexico: Politician's murder blamed on drug cartels

Gunmen assassinated the front-running candidate for governor of a Mexican border state in what President Felipe Calderon called an attempt by drug gangs to sway local and state elections this weekend.

The assailants ambushed Rodolfo Torre’s vehicle as he headed to the airport in Ciudad Victoria, capital of Tamaulipas, a state torn by a turf battle between two rival drug cartels. At least four other people travelling with him were killed.