A backdrop of further gun violence in the USpublished at 13:18 BST

13:18 BST

Trump, wearing a bow tie and tuxedo, points to a reporter in a room full of raised hands trying to get his attention.Image source, Getty Images

Though candidates will be focused on speaking to voters in local communities, world events may well be on their minds.

On Saturday night, a gunman attempted to storm the White House Correspondents’ Dinner in Washington. The acting US attorney general says the suspect was likely targeting President Donald Trump.

President Trump and other senior administration figures were evacuated from the dinner after a man fired several shots while attempting to enter the venue. The suspect, identified in US media as 31-year-old Cole Tomas Allen, was detained at the scene.

King Charles and Queen Camilla are due to head to the US for a state visit this week. Buckingham Palace has confirmed this will indeed go ahead.

The palace said the King was “greatly relieved” to hear the US president, Melania Trump and other guests had been unharmed. The King is due to attend a state banquet tomorrow.

First Minister John Swinney was also invited to this banquet, but turned down the invitation.

Our reporters have been asking the parties for their reaction to events over the weekend – and whether King Charles should still travel to the states.