Miami's two Republican presidential contenders, Marco Rubio and Jeb Bush, along with Wisconsin's Scott Walker, lead Democrat Hillary Clinton in hypothetical head-to-head match-ups in three key swing states, according to a new public-opinion survey.
The Quinnipiac University poll found Clinton trails or is statistically tied in Colorado, Iowa and Virginia with the three GOP candidates:
Colorado Iowa Virginia
Clinton 38 36 41
Rubio 46 44 43
Clinton 36 36 39
Bush 41 42 42
Clinton 38 37 40
Walker 47 45 43
In some cases in Iowa and Colorado, Democratic Sen. Bernie Sanders of Vermont does the same or better than Clinton against Bush, Rubio and Walker, according to the poll, which has an error margin of 2.8 percentage points. The results indicate the 2016 general election could be a close one, assuming Democrats nominate Clinton and Republicans nominate Walker, Bush or Rubio.
Clinton has negative favorability ratings in all three states -- but they're better than Republican Donald Trump, the most negatively viewed of all presidential candidates, according to the poll.