U.S. President Barack Obama's approval rating rebounded to a three-year high at 53 percent, a month after he won a second term, according to a poll released on Thursday by Quinnipiac University.The latest poll showed that 53 percent of American voters approve of the job Obama is doing, while 40 percent disapprove, his best score in three years. "Nothing like winning an election to boost your job approval. President Barack Obama hasn't had a score this good since his 52- 40 percent approval rating May 5, 2011, right after the death of Osama bin Laden." said Peter Brown, assistant director of the Quinnipiac University Polling Institute, in a statement. A previous Quinnipiac poll found that Obama's job approval in July was 45 percent positive and 49 percent negative. However, the incumbent president still fails to reach his record high in June 2009, almost half a year from his inauguration, when 59 percent of Americans were positive of his job and 31 percent negative. "This is only the second time in more than three years that President Obama has broken 50 percent," wrote Brown, "And voters see Republicans as more likely to be obstructionist, and have less confidence in their ability to come up with the right solution to the nation's financial woes."In addition to the president's job approval, the latest poll also found that the Americans surveyed trusted Obama and the Democrats by a margin as wide as 53 percent to 36 percent over Republicans to avoid the "fiscal cliff." Overall, 66 percent of Americans surveyed believe the best way to reduce the deficit is a combination of tax increases and spending cuts.