Utah governor Spencer Cox says suspect Tyler Robinson not cooperating with authorities. Key Trump administration stories from Sunday 14 September

As officials continue to investigate the motives of Tyler Robinson – the 22-year-old accused of shooting conservative activist Charlie Kirk – many Republicans have been quick to lash out at the political left.

Allies of Donald Trump have accused liberals of fomenting anti-conservative vitriol that would encourage violence – even as the president and his allies have often invoked violent imagery against their opponents.