Cruz

Obama said Trump and Cruz, have upset mainstream "establishment" Republicans with their insurgent campaigns

The next big contest, and a crucial one, will be Tuesday's primary in the industrial state of Michigan

Trump is seeking a comprehensive win that would boost his claim that he is pulling away from his rivals

Trump has long said that Cruz may not be constitutionally qualified as president because he was born in Canada

Cruz said Trump had attacked him because Cruz was a threat to him in Iowa