Trump challenges Clinton to drug test.
http://www.bbc.co.uk/news/election-us-2016-37667924
http://www.bbc.co.uk/news/election-us-2016-37667924
Quote:Republican presidential nominee Donald Trump has accused rival Hillary Clinton of being "pumped up" during their last debate, saying they should both be tested for drugs before the next one.
He also suggested the presidential race was looking like a "rigged election".
The comments came in the wake of a string of sex assault claims against him and the publication of a recording in which he made obscene remarks.
Polls suggest Mr Trump is losing ground in some of the key battleground states.