I feel like I've seen this reported continuously over 20+ years. Republican voters are never big supporters of tax cuts tilted to the rich, but it's not the kind of thing they find disqualifying.
It's all how you phrase it, of course. According to the link below...
http://www.gallup.com/poll/190775/americans-say-upper-income-pay-little-taxes.aspx
... 45% of Republicans think "upper-income Americans" (which, conveniently, is not defined) pay too little in income taxes, but only 22% of Republicans think we should "redistribute" income by raising taxes on the rich. Compare those numbers to 75% and 80% for Democrats, and the GOP electorate is still VERY persuadable to support tax cuts for the "rich." If you phrased the poll something like, "Do you support PRESIDENT OBAMA'S policy of increasing taxes on families who make over $250,000 (or whatever)?" I'm guessing like 10% of Republicans would say yes, LOL.
They also don't define what "redistribute income" means. Does it mean take that money and just give it straight to the poor or does it mean increase taxes to fair levels and then use it on roads/schools/infrastructure, etc.