MILWAUKEE (Reuters) - Republican Ted Cruz easily won the Wisconsin presidential primary on Tuesday, dealing a blow to front-runner Donald Trump's hopes of amassing enough delegates for the party's nomination and boosting chances of a rare contested convention.
Cruz's double-digit win over Trump was a breakthrough for Republican Party forces battling to block the controversial New York billionaire, and it raised the prospect of a prolonged nomination fight that could last to the July convention in Cleveland, Ohio.
