Polls in California and other western states have closed, and initial election results are being reported.
President Obama will win California, Hawaii, Minnesota, Pennsylvania and Washington, while Mitt Romney will win Arizona, Idaho, Montana, and Utah, CNN projects.
Also, CNN says President Obama will win the swing state of Wisconsin and Mitt Romney will win the swing state of North Carolina.
Wisconsin voted for Obama over John McCain in 2008 by a nearly 14-point margin, but the race was closer this year in the home state of GOP vice-presidential nominee Paul Ryan.
North Carolina narrowly voted for President Obama in 2008.