Billionaire businessman beats former secretary of state after a hard-fought, bitter battle, according to projections.

the world is already mourning the 'death' of the United States.

One by one the swing states fell his way: Florida, Ohio, North Carolina, Pennsylvania and then Wisconsin. Democrat Hillary Clinton had been clinging for hours to faint hopes as the election of the nation's 45th president roared to a frenzied conclusion.

Shortly after 2 a.m. ET, she called Trump to Clinton concede.

"I pledge to be president for all Americans," the billionaire real-estate mogul and reality TV star told an enthusiastic crowd of supporters in New York. "We are going to rebuild our inner cities... We will rebuild our infrastructure, which will become second to none."

He pledge to create jobs and take care of veterans.

Although thousands of people are taking to Twitter with the hashtag #RIPUSA to express their shock at Trump's shock win.