The GOP panic around Donald Trump has risen to new levels, following Mr. Trump's strong Super Tuesday showing. Stern speeches by GOP establishment figures like Paul Ryan and Mitt Romney may warm the hearts of GOP leadership, but without a concrete plan they will do little to stop the controversial mogul's march to the nomination. Crafting a plan is not easy due to the divided Republican field, the mood of the Republican electorate, the structure of GOP primaries and, not to be overlooked, the enduring, if perhaps surprising, popularity of Mr. Trump. Nonetheless, it is possible to explore what mechanically would have to happen for Mr. Trump to be denied the nomination.
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