Donald Trump is the unexpected politician with unwavering conviction: he never apologises, never backs down. He’s also the newest member of the political establishment with the most unrestrained presence on Twitter, a combination which becomes increasingly problematic if you are the next man lined up to lead the country.

Mr Trump’s tweets are now heavily scrutinised, becoming the standard against which his speeches, remarks and those delivered by his family are compared against for instances of glaring irony. Melania Trump’s promise to tackle social media bullying is a memorable case in point.

A number have come back to haunt him. The President-elect was beaten in the popular vote by Hillary Clinton, who is ahead by more than two million votes, but won thanks to the 290 electoral votes he amassed. This victory came after Mr Trump branded the electoral college “a disaster for democracy“ in a tweet three years before.

World reaction to President Trump: In pictures Show all 29 1 /29 World reaction to President Trump: In pictures World reaction to President Trump: In pictures London, England AP World reaction to President Trump: In pictures London, England Reuters World reaction to President Trump: In pictures Manila, Philippines Getty Images World reaction to President Trump: In pictures Manila, Philippines Getty World reaction to President Trump: In pictures Mosul , Iraq Getty World reaction to President Trump: In pictures Manila, Philippines AP World reaction to President Trump: In pictures New Delhi, India Reuters World reaction to President Trump: In pictures Karachi, Pakistan EPA World reaction to President Trump: In pictures Jakarta, Indonesia Reuters World reaction to President Trump: In pictures Lagos, Nigeria AP World reaction to President Trump: In pictures Kabul, Afghanistan AP World reaction to President Trump: In pictures Jerusalem. Israel Reuters World reaction to President Trump: In pictures Moscow, Russia Reuters World reaction to President Trump: In pictures Seoul, South Korea AP World reaction to President Trump: In pictures Lagos, Nigeria AP World reaction to President Trump: In pictures Peshawar, Pakistan EPA World reaction to President Trump: In pictures Jakarta, Indonesia Reuters World reaction to President Trump: In pictures Hyderabad, India AP World reaction to President Trump: In pictures Kolkata, India AP World reaction to President Trump: In pictures Sydney, Australia Getty World reaction to President Trump: In pictures Sydney, Australia AP World reaction to President Trump: In pictures Aleppo, Syria Reuters World reaction to President Trump: In pictures Mexico City, Mexico AP World reaction to President Trump: In pictures Port-of-Spain, Trinidad and Tobago Reuters World reaction to President Trump: In pictures Jerusalem, Israel EPA World reaction to President Trump: In pictures Baghdad, Iraq Rex World reaction to President Trump: In pictures Gaza Strip, Palestinian Territories Rex World reaction to President Trump: In pictures Tokyo, Japan Rex World reaction to President Trump: In pictures Mexico City, Mexico Getty

The billionaire business magnate hinted he might consider running for the White House on a number of occasions, hints that were widely ridiculed by the likes of President Obama, Seth Meyers, John Oliver, a host of comedians and the public, including one woman who implored him not to run in 2014. This tweet was quoted on his account with commentary added on the end that holds more significance now than most would have ever thought possible.