A new poll from PPP shows Mitt Romney with a commanding lead heading into Saturday's caucuses in Nevada. Romney has 50 percent support there, according to the poll of likely caucusgoers. His numbers double those of Newt Gingrich, who only receives 25 percent support, with Ron Paul and Rick Santorum at 15 percent and 8 percent, respectively. That's Romney's best position in Nevada yet, and if the numbers hold or the trend continues, he could look at garnering more than half of the vote for the first time in this primary season.

Romney's impressive numbers are in no small part thanks to the large proportion of Mormon voters in Nevada. According to the poll, Romney leads 78-14 over Paul with Mormons, who will constitute 20 percent of the vote. Read the full results of the poll here.

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