Melania Trump raged against the 'sham' impeachment of her husband, the media and "divisive" Democrats in rare political attack. 

In her speech Trump, an anti-bullying campaigner, also defended her husband's daily social media attacks.

"For the first time in history the citizens of this country get to hear directly from their president, every single day through social media," said Ms Trump.

"I do not always agree with the way he says things but it is important to him that he speaks directly to the people he serves."

The first lady went after the Democrats for "caring more about removing our elected president" than concentrting on coronavirus when it broke out in the US earlier this year.

Trump's fiery accusations on Tuesday came during her first campaign event in Philadelphia, Pennsylvania, less than a week before election day.

"The Democrats have chosen to put their own agendas ahead of the American people, they intend to create a divide, a divide, that causes confusion and fear instead of security, that is not leadership," she said.