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Trump takes aim at Cruz Republican presidential frontrunner Donald Trump called fellow White House contender Ted Cruz “a little bit of a maniac” as the senator overtook him in an Iowa opinion poll. Mr Cruz’s conservatism, fundraising heft and front-of-the-pack status in Iowa appear to suggest he has the most direct route to the GOP nomination. A critic of excessive government data collection, Mr Cruz has been aggressive about using statisticians and psychologists to profile and target voters.