Which polls will determine who makes the first GOP debate?

For GOP presidential candidates, winning the right to participate in the first debate on Fox News next month means they'll have to be ranked as one of the top 10 contenders, but that ranking may well depend on which polls are used. A Fox press release from May says the leading 10 candidates, based on an average of the five most recent national polls, will be able to debate. The polls "must be conducted by major, nationally recognized organizations that use standard methodological techniques," Fox said.