Hillary Clinton on Wednesday slammed rival Donald Trump's "pure negativity" in their bitter presidential race, as he adopted an increasingly incendiary tone and renewed his call for the Democratic nominee to go to jail. With less than four weeks before Election Day, and Clinton maintaining her edge in national polls, the pair bore down on key battleground states where the race is likely to be decided. Trump slammed his opponent, declaring her a criminal who should be prosecuted for endangering national security by using a private email account while secretary of state, and deleting some 33,000 messages that Clinton said were personal and not work-related.
