A revolution in politics is under way, and it is being fought 140 characters at a time. Gaby Hinsliff reports on how Twitter is fuelling a political race to the bottom
When Hillary Rodham Clinton became the first woman in American history to clinch a major party’s presidential nomination, her rival responded with all his customary grace.
“Obama just endorsed Crooked Hillary. He wants four more years of Obama – but nobody else does!” Donald Trump sneered on Twitter.