One of my favourite webcomic artists, Extra Fabulous Comics, has summarised what a Donald Trump presidency would mean for the United States of America.

Panel one is a reference to the leading Republican candidate’s policy of building a wall between the USA and Mexico. Bizarrely, he expects Mexico to pay for it. Given Mexico has already said it will not, if Trump is elected the row will go down as one of the biggest fence maintenance disputes in the planet’s history.

The rest of the comic reminds us what recent history has shown Republican presidents mean for the states: disaster.

Trump’s first TV campaign ad for the Republican primaries was unleashed earlier today. In it his wall promise is reiterated, as well as his policy of temporarily banning Muslims entering the US “until we can figure out what’s going on” – a brief so broad it George W. Bush and Dick Cheney would be impressed.

According to the ad, Trump will also “cut the head off ISIS.” Given Donald’s anti-Muslim nuttery is being used by Somalia-based terror group al-Shabaab in a recruitment video, he may well be adding to his to-do list.