Cruz And Rubio Data Games May Not Be Enough To Overcome Trump's Lead

Both campaigns outperformed the polling numbers in Iowa with well-organized, data-happy ground games. But in NH, it's a whole new ballgame.

The Ted Cruz and Marco Rubio campaigns each rode to strong finishes in Iowa on the strength of well-organized and data-driven ground games. But the magic might not work as well in New Hampshire.

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