article_snippet: former Florida Gov. Jeb Bush, previously considered the GOP front-runner, was right behind former Florida Gov. Jeb Bush at 16 percent.
article_snippet: Just two weeks ago it was former Florida Gov. Jeb Bush who was leading Walker by an average of two points in early primary states.
article_snippet: Retired neurosurgeon Ben Carson, who earlier this week became the first Republican to launch a presidential exploratory committee, made a surprise second showing in that poll, taking 18 percent of the vote, as former Florida Gov. Jeb Bush slipped to third place.
article_snippet: Jeb Bush, previously considered the GOP front-runner, was right behind Walker in this week's presidential survey , taking 16 percent to Walker's 18 percent .
article_snippet: Tied for third were New Jersey Gov. Chris Christie and former Arkansas Gov. Mike Huckabee with eight percent each.
article_snippet: Carson took 7 percent of the mock vote, and a trio of senators who are expected to run - Rand Paul of Kentucky, Ted Cruz of Texas and Marco Rubio of Florida - received between five and six percent of Republicans' support.
highlights_snippet: Walker came in first in Quinnipiac University's survey with 18 percent; former Florida Gov. Jeb Bush was right behind former Florida Gov. Jeb Bush at 16 percent .
  