Iowa caucuses are 54 days away. Donald Trump is, still, the national frontrunner. Marco Rubio is, now, the establishment's best (only?) hope. And Ted Cruz is the guy who looks best positioned to win. Yes, you heard that right. Ted Cruz, as of today, has the most direct route to the Republican presidential nomination -- assuming the past history of Republican nomination fights works as a broad predictor where this race is headed. Let me elaborate. 1. Cruz is positioned as the most conservative candidate in the race. While Trump gets all of the attention for his over-the-top statements, Cruz...