Donald Trump 'writes angrier and more negative Twitter posts himself'

Republican candidate uses words such as 'crazy', 'weak' and 'dumb' on Android device, while staff post calmer tweets on iPhone, data suggests

The angrier, more negative tweets from Donald Trump's Twitter account are mostly written by the presidential candidate himself, while campaign staffers are responsible for the calmer announcements and pictures, according to an analysis by a data scientist.

Building on the work of a Twitter user who noticed that the tone of Tweets from @readonaldtrump posted using an Android phone were different to those created using an iPhone, Stack Overflow's David Robinson concluded that they were the work of very different people.