SurveyUSA looks at the two most likely Republican nominees, alone and paired as a Republican ticket, running against the existing Democratic ticket of Barack Obama and Joe Biden, and a new Democratic ticket of Barack Obama and Hillary Clinton. Here is the progression of match-ups, and the results:
* Obama 44%
* Romney 44%
* Obama 47%
* Gingrich 40%
* Democratic ticket of Obama-Biden 46%
* Republican ticket of Romney-Gingrich 45%
* Democratic ticket of Obama-Clinton 50%
* Republican ticket of Romney-Gingrich 41%
* Democratic ticket of Obama-Biden 46%
* Republican ticket of Gingrich-Romney 42%
* Democratic ticket of Obama-Clinton 50%
* Republican ticket of Gingrich-Romney 40%
http://www.surveyusa.com/client/PollReport.aspx?g=f0a194b5-07c7-495f-b830-c47d40d4c176
