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The Topline: CNN's Peculiar Debate Dance Continues
After much delay, CNN amended the criteria for who will be included in their Republican primary debate in two weeks. The new criteria still leave questions.
The Topline: Diving into the Boston Olympics Polling
Plus: Super Bowl data wrap-up; Obama approval uptick; early 2016 primary polling; vaccines, income inequality, education; and what does margin of error really mean, anyhow?