Mexico City ? With most pollsters judging Mexico’s presidential race too close to call, the two leading contenders entered the final weekend of campaigning with appeals to undecided voters, including would-be defectors from the candidate running a distant third.

On Friday, the last day polls legally were allowed to be published, the country’s two leading newspapers, Reforma and El Universal, reported identical survey results: 36 percent for left-wing populist Andres Manuel Lopez Obrador and 34 percent for conservative rival Felipe Calderon.

The margin of error in both polls was bigger than the two-point gap, bolstering a consensus that Lopez Obrador’s surge in recent surveys has given him an edge but failed to make him the clear favorite in the July 2 election.