US Republican presidential candidate Donald Trump has launched a rare attack on Michelle Obama, saying “all she wants to do is campaign” for his rival, according to a BBC report.
He also accused the first lady of attacking Hillary Clinton in 2007 by invoking a line she had said about fitness to run the White House.
The Obama campaign had denied the line referred to Mrs Clinton.
Mrs Clinton, meanwhile, accused Mr Trump of threatening democracy if he did not accept the election result.
“We know the difference between leadership and dictatorship, and the peaceful transition of power is one of the things that sets us apart,” she told a crowd in Cleveland, Ohio.
“Donald Trump refused to say that he’d respect the results of this election. By doing that, he’s threatening our democracy.”