Rush Limbaugh is backing Ted Cruz in his immigration battle with Marco Rubio. The conservative talk show host tried to break down what he called a "muddled" back and forth between the two candidates on Thursday."Marco Rubio was part of the Gang of Eight trying to secure amnesty and wishes he wasn't. Ted Cruz never was and they're trying to make it out like he was," Limbaugh said. "At the end of the day when people go vote, people are gonna remember of the two it was Marco Rubio that was a member of the Gang of Eight and Ted...