Gravis Public Opinion Polls From Multiple Swing States Reveal Mixed News for Candidates Recent public opinion polls of likely voters in key swing states by Gravis Marketing show an extremely tight race between President Barack Obama and Governor Mitt Romney. The public opinion polls, conducted in Nevada, North Carolina, Florida, Iowa, Virginia and Ohio, between October 24, 2012, and October 27, 2012, also reveal that there are fewer and fewer voters remaining undecided and therefore open to last-minute ads or campaigning by either candidate. President Obama enjoys a lead in four of the six states—Virginia, Iowa, Nevada, and Ohio—with Governor Romney holding onto leads in North Carolina and Florida. However, Obama’s advantages in Nevada (50-49) and the all-important swing state of Ohio (50-49), which, with 18 electoral votes, many experts believe may decide the election, are narrow. And in both states just one percent of likely voters remain undecided.