Donald Trump speaks on the last day of the Republican National Convention in Cleveland, Ohio, the United States, July 21, 2016. New York billionaire Donald Trump officially accepted the presidential nomination of the U.S. Republican Party Thursday night on the final day of the Republican National Convention. [Photo: Xinhua/Yin Bogu]

Donald Trump had officially accepted the presidential nomination for the U.S. Republican Party on Thursday night, announcing a plan that will "put America first."

It was the biggest night so far for the New York real estate mogul and final night of the 2016 Republican National Convention held at the Quicken Loans Arena in downtown Cleveland in the State of Ohio.

Trump formally accepted the party's presidential nomination, saying "I humbly and gratefully accept your nomination for the presidency of the United States."

In a rarely used teleprompter speech, Trump covered issues including law and order, national security, immigration, trade, tax-cut and the threat of terrorism. He then proclaimed that "I am your voice" to the American people.

Trump also launched a series of attacks on his Democratic Party rival Hillary Clinton, accusing her of keeping "our rigged system in place" and leaving "death, destruction and weakness" as her legacy.

The speech marked the end of the bumpy convention and the start of the uphill battle for the 270 electoral votes he needs in November.