It took Donald Trump literally seconds to break his promise of staying out of the general election

Donald Trump is currently in the United Kingdom to join other world leaders for a Nato summit in London and will also be treated to a reception at Buckingham Palace and Downing Street.

With a general election a little over a week away, the president's presence in the UK is obviously going to create controversy, namely due to his association with Boris Johnson and the claims that the NHS could be sold to the US after Brexit.

During a press conference on Tuesday morning alongside Jens Stoltenberg, the secretary general of Nato, Trump was questioned about whether he would attempt to get involved in the election.

In response, Trump essentially denied that he would be saying anything about the election during his visit.

It's going to be a very important election. But I have no thoughts on it.

However, just minutes later he brought the subject up again and immediately contradicted himself by appearing to back Johnson.

Apparently suffering a brief lapse in memory, he said:

I'll stay out of the election...I think Boris is very capable and I think he'll do a good job

According to ITV reporter, Daniel Hewitt, this sudden change in opinion lasted all of nine minutes.

Trump did add that he would be willing to work with Jeremy Corbyn so he might not be putting all his eggs in one basket.

According to reports, Boris Johnson will not be holding any talks with the president, to prevent any interactions with the president disrupting the Tories election campaign.

More: Trump says he and Boris Johnson are 'very much aligned' and that's terrifying​