WASHINGTON (AFP) - US polling stations began opening at 6:00 am (1100 GMT) with sharply divided voters choosing between incumbent Republican President George W. Bush (news - web sites), 58, and Democratic challenger John Kerry (news - web sites), 60. Some 165 million Americans are eligible to vote in one of the tightest presidential election in recent history. Although voter turnout is unpredictable, analysts believe it will be markedly higher than the 106 million in 2000. Under the US electoral system, however, it is the candidate who wins at least 270 out of 538 Electoral College (news - web sites)...
