While Donald Trump and Ben Carson continue to dominate the polls and a gaggle of Establishment candidates battle one another, the favorite to win the Republican presidential nomination just might be Texas Sen. Ted Cruz, journalist Mark Halperin said Tuesday.On the day of the fourth Republican debate Tuesday, Halperin said on "The Laura Ingraham Show" that Cruz might be best situated to, as Ingraham put it, "marry the passion to the substance."Halperin, co-managing editor of Bloomberg Politics, said Cruz is set up nicely for the Iowa caucuses and would have favorable terrain in the early voting Southern states. In addition,...