President-elect Donald Trump gives his acceptance speech during his election night rally, Nov. 9, 2016.

Americans have elected Donald J. Trump as the 45th President of the United States. The Republican Party candidate(共和党候选人) defeated the Democratic Party nominee(民主党候选人), Hillary Clinton.

"I pledge to every citizen of our land that I will be president for every American. And that is very important to me," says Mr. Trump. Trump is also the oldest American elected president for a first term.

"For those that have chosen not to support me in the past, of which there were a few people, I'm reaching out to you for your guidance and you help so we can work together and unify our great country."

Trump’s win brings to an end eight years of Democratic Party rule (民主党统治)of the White House. Political experts have said the change could lead to the undoing（取消） of many of President Barack Obama’s policies(政策).

One of Trump’s first targets(目标) may be the Affordable Care Act(美国平价医疗法案), a health care law signed by President Obama in 2010. Trump criticized the measure repeatedly during his campaign. He promised supporters he would cancel it if elected.