Barack Obama calls on Donald Trump to ‘stop whining’ about rigged election, slams praise for Putin

President Barack Obama issued a scathing responses to Donald Trump's continued claims that the US election will be rigged. 

"I invite Mr Trump to stop whining and try to make his case to get votes," Mr Obama said during a news conference in the White House Rose Garden.

The president said that Mr Trump's calims are "not based on facts". 

"He's already whining before the game's even over," he said. 

He added that the likelihood of Mr Trump contesting the results of the election is "one way of weakening America and making it less great".