62% of Likely Republican Voters who support Trump say their minds are made up, compared to only 34% of all GOP voters who say they're certain-Dec. 16-17, 2015 Rasmussen national poll

Dec. 16-17, 2015 national poll of 624 Likely Republican Primary Voters  
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12/18/15, "Trump Still Rules GOP Roost After Tuesday’s Debate," Rasmussen Reports
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"Donald Trump still holds the lead in Rasmussen Reports’ latest look at the race for the Republican presidential nomination following Tuesday night’s debate. His voters also are by far the least likely to say they’re going to change their minds....
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Just 34% of GOP voters say they are certain of their vote. But it's striking to note that 62% of those who support Trump have made up their minds, nearly twice as many as those who say that of their vote for any other candidate. 
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The national telephone survey of 624 Likely Republican Primary Voters was conducted by Rasmussen Reports on December 16-17, 2015. The margin of sampling error for the survey is +/- 4 percentage points with a 95% level of confidence. Fieldwork for all Rasmussen Reports surveys is conducted by Pulse Opinion Research, LLC. See methodology....
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A sizable majority of Republicans still believe Trump is likely to be their presidential nominee next year. 
Trump leads in virtually every demographic category of Republican voters."... 







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