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President Obama tops Republican Mitt Romney in a head-to-head match-up, according to the latest Fox News poll, which finds American voters feeling more positive about the economy.

Obama would have an advantage of 46 percent to 39 percent over Romney, if the election were held today. Three weeks ago the candidates were tied at 46 percent each.

The national poll, released Wednesday, shows the president’s lead is just outside the poll’s margin of sampling error.