Donald Trump Twitter: Trump reignites twitter war with London Mayor Sadiq Khan minutes before landing in UK

Just moments before landing in England for his second state visit to the United Kingdom, President Trump revitalized his ongoing war of words with London Mayor Sadiq Khan. Mr. Trump tweeted early Monday aboard Air Force One, slamming Khan as doing a "terrible job" as mayor and later called the Briton "nasty", a term he's quoted as using to describe the Duchess of Sussex Meghan Markle. The two then got into a heated Twitter exchange after Khan said he was "reassured" London was on of the  "safest global cities in the world."In response, Mr. Trump tweeted, saying, "At least 7 dead and 48 wounded in terror attack and Mayor of London says there is 'no reason to be alarmed!'" He later posted, "Do you notice we are not having a gun debate right now? It risks alienating mainstream Muslims." President Trump later challenged Khan to an IQ test during an interview on Britain's ITV.Regardless of the twitter tit-for-tat, Mr. Trump appeared optimistic of his visit to the UK, saying he looked forward to being a "great friend" to longtime U.S. ally, even if CNN is the "primary source of news available from the U.S." according to his assessment. Trump tweeted early Monday aboard Air Force One, slamming Khan as doing a "terrible job" and later called the Briton "nasty Trump tweeted early Monday aboard Air Force One, slamming Khan as doing a "terrible job" and later called the Briton "nasty President Trump is in London for an official 3-day visit that will see him meet the royals, Prime Minister Theresa May, and mark the 75th anniversary of D-Day President Trump is in London for an official 3-day visit that will see him meet the royals, Prime Minister Theresa May, and mark the 75th anniversary of D-Day President Trump arrived in Britain with a tweet calling London's mayor a "loser." Earlier, he said a past comment by Prince Harry's wife, Meghan, was "nasty." The president also urged Britain's next prime minister to leave the European Union without a deal. The president lands in London this morning after a blast at Meghan Markle and the mayor who said he doesn't deserve a state visit. President Trump and First Lady Melania Trump arrive at Stansted Airport, outside London, for Mr. Trump's first official state visit to Great Britain.