In a poll for business weekly Challenges, Harris Interactive said Macron’s victory – which pollsters considered almost a predetermined conclusion in recent months – was now on the verge of error. “This is the first time the two finalists of the 2017 presidential election have been tested so closely,” Challenges said on its website, adding that in March, Macron’s lead was still between 53-47% and 58-42. %. Sign up now for FREE unlimited access to Reuters.com Register Monday’s Harris Interactive poll – in line with every other poll in the last month – still points to Macron as the likely winner. But his lead has shrunk significantly as he entered the campaign late, apparently detached from the crisis in Ukraine. He has focused on rather unpopular economic reforms, including raising the retirement age, upsetting his camp. Less than a week before the first round, Le Pen’s focus on the declining purchasing power of middle- and lower-income voters paid off. Her ratings continued to improve for both the first round and the second round on April 24. Earlier Monday, a poll by OpinionWay and Kéa Partners on the daily Les Echos and Radio Classique also predicted a limited 53% -47% win margin for Macron. read more In 2017, Macron won the second round against Le Pen with 66%. Sign up now for FREE unlimited access to Reuters.com Register Report by Tassilo Hummel in Paris Edited by Matthew Lewis Our role models: The Thomson Reuters Trust Principles.