Trump escalates attacks on Harris' mental fitness, suggests prosecution

Republican presidential nominee Donald Trump escalated his personal attacks on his Democratic rival Kamala Harris on Sunday by repeating an insult that she was "mentally impaired" while also saying she should be "impeached and prosecuted".

Trump's rally in Erie, Pennsylvania, took on similar themes as an event one day earlier that he described himself as a "dark speech". He told a cheering crowd that Harris was responsible for an "invasion" at the US-Mexico border and "she should be impeached and prosecuted for her actions".

"Crooked Joe Biden became mentally impaired," he added. "Sad. But lying Kamala Harris, honestly, I believe she was born that way. There's something wrong with Kamala. And I just don't know what it is but there is definitely something missing. And you know what, everybody knows it."

With just over a month until the election, Trump is intensifying his use of personal and offensive attacks, even as some Republicans say he'd be better sticking to the issues.

His ..