Author is uploader, Excel spreadsheet, source data originally obtained from Wikipedia on May 17, 2007 (and periodically updated, see below). Dates of polls truncated to only include the end date of the poll.
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Updated including data posted to http://en.wikipedia.org/wiki/Opinion_polling_for_the_United_States_presidential_election%2C_2008 as of June 15, 2007, including Diageo/Hotline Poll 30-Apr-07
New polling data including: NBC News/Wall Street Journal Poll 11-Jun-07 Hillary Clinton 48% Rudy Giuliani 43% NBC News/Wall Street Journal Poll 11-Jun-07 Barack Obama 50% Fred Thompson 31% Quinnipiac University Poll 11-Jun-07 Hillary Clinton 45% Rudy
Update including the following information: Rasmussen Reports Poll June 6-7, 2007 John Edwards 47% Rudy Giuliani 43% Rasmussen Reports Poll June 6-7, 2007 John Edwards 51% Fred Thompson 38% Rasmussen Reports Poll June 4-5, 2007 Barack Obama 4
Update including the following data: Zogby International 20-May-07 Hillary Clinton 43% John McCain 47% Zogby International 20-May-07 Barack Obama 46% John McCain 43% Zogby International 20-May-07 John Edwards 41% John McCain 46% Zogby Internation
tinkering with data points to ensure that one party's marker doesn't obscure another party's marker if the result is the same, GOP now square markers, DEM now diamond markers (so that, in the event of a tie, both markers are visible)
Author is uploader, Excel spreadsheet, source data obtained from Wikipedia on May 17, 2007. Dates of polls truncated to only include the end date of the poll.
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