text:  Welcome back to NewsHour. Coming up, we'll be looking at the radicalisation of millions of Americans who say they could be willing to use violence to help or hinder Donald Trump. And we'll be talking to Republican and Democratic strategists about how this attack will affect the US elections. But first, a little more detail on international reaction to events in Pennsylvania. The Australian Prime Minister, Antony Albanese, condemned the shooting as an inexcusable attack on democracy.