Independent voters, who helped propel US President Barack Obama to victory in the 2008 election, could be an obstacle in his bid for a second term in the White House, according to a New York Times/CBS News poll published Wednesday. A majority of independent voters have soured on Obama's presidency, disapprove of his handling of the economy and do not have a clear idea of what he hopes to accomplish if reelected, the Times reported. Only 31 percent of independent voters have a favorable opinion of the president and two-thirds say he has not made real progress in fixing the economy, the newspaper said. Among all voters, 38 percent view Obama favorably, 45 percent unfavorably and 17 percent have no opinion, the survey showed. Voters were evenly divided in a matchup between Obama and Romney, but Obama fared better against other Republican candidates, the Times said.