WASHINGTON (AP) — Donald Trump will be standing at center stage, but Sen. Ted Cruz (R-TX) will be in the spotlight during Tuesday’s Republican presidential debate.
The Texas senator is challenging Trump’s lead in Iowa, and has the money, campaign infrastructure and conservative appeal to compete deep into the GOP primary season. Those potential advantages make him a top target for his rivals, most notably Trump and Florida Sen. Marco Rubio (R-FL).
Trump and Cruz have been loosely aligned for months, protecting the senator from the criticism the businessman has levied on other opponents. But signs of a split have emerged in recent days.
Cruz appeared to question Trump’s judgment at a private fundraiser, according to audio obtained by The New York Times. Trump later called Cruz “a little bit of a maniac.”

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