Ivanka Trump, the daughter of United States' President Donald Trump, erroneously mentioned Kingston today (July 23) as she tweeted her congratulations UK Prime Minister in waiting Boris Johnson.

Ms Trump was offering her best wishes to Mr Johnson after he was elected to replace outgoing Prime Minister Theresa May as leader of the Conservative party.

"Congratulations @BorisJohnson on becoming the next prime minister of the United Kingston," Ms Trump said on Twitter.

It was unclear whether Ms Trump — who has faced growing scrutiny and accusations of nepotism regarding her expansive role in her father's administration — meant to mention Kingston explicitly.

Within minutes, her account had deleted the tweet.

Nevertheless, it was picked up on and liked by thousands of other Twitter users.

Kingston Conservatives Leader Kevin Davis was one of the accounts who retweeted Ms Trump's message to Mr Johnson.

Kingston Liberal Democrats meanwhile rebuffed Ms Trump's suggestion that Mr Johnson now had dominion over the borough (RBK).

"Though Boris might have been elected as the next PM, we can confirm that Kingston is still represented by @EdwardJDavey. Sorry Ivanka," a spokesperson for the party said on Twitter, referencing Kingston and Surbiton MP Ed Davey.

Legendary Labour MP Dennis Skinner instead quipped he was "relieved" by her announcement. 

Ms Trump appears to share her father's grasp of detail regarding UK politics.

Boasting of his exploits during a recent, controversial state visit to the UK, Mr Trump previously tweeted how he "met with the Prince of Whales," on his visit to Britain, in a bungled reference to Prince Charles.

Ms Trump for her part made the news for a variety of different reasons prior to this latest misstep.

She and her father were criticised for nepotism following the release of a video showing Ms Trump conversing with world heads of state at the recent G20 summit in Osaka, Japan.

Last year, she closed down her self-titled fashion brand, months after an expose published by the Guardian which uncovered accusations of "poverty pay", "intimidation" and "violations of women’s rights" at an Indonesian factory where the company's products were made.