Update: 2:33 a.m.
The Associated Press has projected that Republican candidate Donald J. Trump has won the U.S. presidential election, defeating Hillary Clinton.
The result was confirmed by the Washington Post.
The AP projected that Trump would win Wisconsin, giving him 276 electoral votes. He needed 270 to win.
Trump pulled off a stunning upset, winning in Pennsylvania, Florida and Ohio.
He is expected to address his supporters this morning.
Clinton has not yet conceded.
Republican Presidential candidate Donald Trump won West Virginia, which gives him five electoral votes.
Democratic candidate Hillary Clinton struggled in the state due to her views on the coal industry, its major industry.
Both candidates are seeking the magic number of 270 electoral votes, which is needed to win the presidency.
Trump has won in Kentucky and Indiana, while Clinton has won in Vermont.
The three results were expected.
Vermont has voted democratic in every election since 1988, while Kentucky has had a Republican trend since 2000.
Indiana is normally a Republican bastion, but was won by President Barack Obama in 2008. The Republicans recaptured the entity in 2012 and the running mate of Trump, Mike Pence, is governor of that state.
Two keys states, Florida and North Carolina, are extremely close.
Other states in which Trump has been declared the winner are Oklahoma, Alabama, South Carolina and Tennessee. Clinton has won in Rhode Island, Massachusetts, New Jersey and Delaware.
Update: 8:30 p.m.
Arkansas is too close to call. Florida is too close to call with the candidates separated by a few thousand votes.
Update: 9 p.m.
Polls closed in 14 states. There are 156 electoral votes available. Key states are Colorado and Michigan.
Clinton has won in New York. Trump won Texas, Wyoming, Arkansas, North Dakota and South Dakota, as well as four of the five electoral votes in Nebraska. New Mexico is too close to call. Arizona also remains too close to call, while it is a traditionally Republican state.
Trump leads 139 votes to 97 for Clinton. It takes 270 to win. Florida remains too close to call. Virginia and Pennsylvania also remain too close to call.
Update: 9:30 p.m.
CNN states that Trump is ahead. Many states remain too close to call, including Florida, Ohio, New Hampshire and Pennsylvania. Also too close to call is Virginia, the home state of Clinton running mate Tim Kaine.
Some pundits are saying a winner may not be declared until early Wednesday.
Update: 10 p.m.
Polls close in Iowa, Nevada, Montana, Utah and most of Idaho.
It is projected that Trump will win Montana and three electoral votes. No projection has been made in the other states.
It appears as though Clinton will prevail in Virginia, which is a crucial state for her to win. But Trump still leads in Wisconsin, Michigan, Florida and Ohio. Clinton leads in Pennsylvania and Colorado. But all these states remain too close to call.
Update: 10:30 p.m.
Trump has been declared the winner in Ohio, which has energized his supporters. North Carolina, Michigan and Florida will likely decide the election. All those states remain too close to call. Trump has outperformed polling numbers in a number of states.
Clinton has been declared the winner in Colorado and Virginia.
Polls will close at 11 p.m. eastern time in California, Oregon, Washington, Hawaii and a small part of Idaho.
Trump leads Clinton 167-109.
Futures in the U.S. stock markets are down 600 points due to the uncertainty.
UPDATE: 11 p.m.
Trump has been projected by some news organizations as winning North Carolina, which is a key state for his presidential chances. He is also ahead in Florida with more than 99 percent of the vote counted. Yahoo and the Associated Press have called Florida for Trump.
Polls closed in California, Oregon, Washington, Hawaii and a small part of Idaho. They remain open only in Alaska.
Republicans have been projected to win a key senate race in Wisconsin. That win will help them regain control of the senate.
Update: 11:30 p.m.
Many news organizations are divided on their current electoral college predictions.
The Washington Post has Trump leading Clinton 216-197.
Fox News has Trump leading Clinton 222-209.
The New York Times has Trump leading 168-109.
CNN has Clinton leading 197-187.
Campaign officials from both sides are calling the race too close to call.
Only a handful of states remain disputed, with Michigan and Pennsylvania having the most outstanding electoral votes. The race could be decided by a handful of electoral votes, including the four available in New Hampshire or single votes available in Nebraska and Maine that are distributed separately from the popular vote total in those states.
There is also the possibility of a 269-269 tie, which would be broken by the House of Representatives, which is controlled by the Republicans.
Update: 12:30 a.m.
Alaska polls will close in 30 minutes, the last state to tally ballots. The states that remain contested are Arizona, Michigan, Minnesota, Pennsylvania, New Hampshire and Maine.
At this point, Trump leads Clinton 254-215. Trump is expected to win the three electoral votes in Alaska and is ahead in Arizona, meaning he will win the presidency if he wins any other state.
Update: 1 a.m.
Polls in Alaska have now closed and voting is finished for the 2016 presidential election.
Maine's three electoral votes have been called for Clinton, while the fourth will be allocated based on a congressional district. Minnesota, Arizona, Pennsylvania, New Hampshire and Michigan remain undeclared.
Trump currently has 254 out of the 270 electoral votes he needs to win.
Update: 1:40 a.m.
Yahoo news service has declared Pennsylvania for Trump with 99 percent of the vote recorded. With those 20 electoral votes, he would have enough to be elected president of the United States.
Other news services have not confirmed this result.
AP calls Pennsylvania for Donald Trump. That news organization has him at 264 electoral votes, as it has not yet called Wisconsin, which other new agencies have called for Trump.
Update: 2 a.m.
Hilary Clinton refuses to concede, saying some states are too close to call, in a message delivered by campaign manager John Podesta.
"She has done an amazing job and she is not done yet," the campaign manager said.
A winner has not been declared in the election by any news agency.
Neither Trump nor any of his campaign aides have commented.
Update: 2:30 a.m.
Trump arrives at campaign headquarters. It is not yet clear if he will address the crowd or not, but there are indications he will make a speech despite the fact that the results are not yet confirmed by any news organization.
Information in development...