France's Undecided May Determine Presidential First Round: Chart

(Bloomberg) -- The battle to reach the runoff in France’s presidential election is putting pollsters to the test as never before. With just a few days to go before Sunday’s first round of voting, the four potential finalists are within a range of fewer than 4 percentage points. On top of that, as many as 40 percent of voters have yet to decide on their candidate, according to estimates by multiple polling firms.

To contact the reporters on this story: Gregory Viscusi in Paris at gviscusi@bloomberg.net, Mark Deen in Paris at markdeen@bloomberg.net.

To contact the editors responsible for this story: Alan Crawford at acrawford6@bloomberg.net, Eric Coleman, Sophie Caronello