Former Rep. Allen West open to Senate primary challenge against Rubio By Justin Sink - 06/19/13 08:34 AM ET Former Rep. Allen West (R-Fla.) said Wednesday that he may mount a primary challenge to Sen. Marco Rubio (R-Fla.) in their state's 2016 U.S. Senate primary. West told station WMAL that he could run for Senate "if I see people that are not taking our country down the right path, if I see people that are not standing up for the right type of principles, and putting their own party politics before what is best for the United States of America."...