Donald Trump keeps insisting he is a winner, and so are those who support him, he loves to remind voters how rich he is, and the message is striking a chord, says Arie W Kruglanski

The heinous acts committed by Islamic State are done to make it look more powerful and impenetrable. But they can also unite its enemies and detractors, writes Arie W Kruglanski.

Delivering a fatal blow to terrorist leaders in an attempt to kill off the entire groups rarely has the desired effect and amounts to little more than militaristic box-ticking, writes Arie W Kruglanski