Donald Trump running for president

US businessman Donald Trump announced on Tuesday that he is running for president.

Business Mogul Donald Trump. Picture: AFP.

JOHANNESBURG - US businessman Donald Trump announced on Tuesday that he is running for president.

Trump, a Republican, has never formally run for president before, but has often talked about it.

The outspoken businessman launched his presidential campaign on Tuesday.

He will be up against, among others, Jeb Bush and former fist lady Hillary Clinton.

This is her second run for the White House.

Bush began his US presidential bid on Monday with a vow to 'fix' a dysfunctional Washington and "get events in the world moving our way again."

Meanwhile, people on Twitter reacted with humour to the announcement: