Mexican election too close to call

Voting in the Mexican elections closed an hour ago, and the preliminary result is too close to call. The last few polls showed left-wing candidate Andrés Manuel López Obrador ahead by a couple of percent, but that's within the margin of error, so while he's probably ahead, its not certain. I guess it'll be another nail-biting wait for results to trickle in, to see if Latin America's red-tide goes all the way to the Texas border...