Donald Trump has accepted the Republican presidential nomination with a speech which swung between a list of his "achievements" and an attack on what he called the "radicalism" of Joe Biden.

During his 70-minute long speech to a pandemic-defying 1,500 people on the White House lawn, the US president said the upcoming election would "decide whether we save the American Dream, or whether we allow a socialist agenda to demolish our cherished destiny".

"It will decide whether we rapidly create millions of high paying jobs, or whether we crush our industries and send millions of these jobs overseas, as has foolishly been done for many decades," Mr Trump said.

"Your vote will decide whether we protect law abiding Americans, or whether we give free reign to violent anarchists, agitators, and criminals who threaten our citizens.

"And this election will decide whether we will defend the American way of life, or whether we allow a radical movement to completely dismantle and destroy it."

The speech was designed to paint a picture of Republican respect for law and order and country where there is "violence and danger in the streets of many Democrat-run cities".

He said the Republican Party "condemns the rioting, looting, arson and violence we have seen in Democrat-run cities like Kenosha, Minneapolis, Portland, Chicago, and New York".