Britain's Prime Minister Boris Johnson visits Peterhead Fish Market in Peterhead, Scotland September 6, 2019. Duncan McGlynn/Pool via REUTERS

Britain's Prime Minister Boris Johnson visits Darnford Farm in Darnford, Banchory near Aberdeen, Scotland, Britain September 6, 2019. Andrew Milligan/Pool via REUTERS TPX IMAGES OF THE DAY

Britain's new Prime Minister, Boris Johnson, enters Downing Street, in London, Britain July 24, 2019.

Britain's Prime Minister Boris Johnson, accompanied by local farmer Matt Shervington-Jones, inspects the egg operations during his visit to rally support for his farming plans post-Brexit, at Shervington Farm, St Brides Wentlooge near Newport, Wales, Britain July 30, 2019. Adrian Dennis/Pool via REUTERS

Britain's Prime Minister Boris Johnson reacts during a speech on domestic priorities at the Science and Industry Museum in Manchester, Britain July 27, 2019. Rui Vieira/Pool via REUTERS

Britain's Prime Minister Boris Johnson talks to patient Scarlett Gibbons, 5, during his visit to the Royal Cornwall Hospital in Truro, Britain, August 19, 2019. REUTERS/Peter Nicholls/Pool

French President Emmanuel Macron and his wife Brigitte Macron welcome Britain's Prime Minister Boris Johnson as he arrives for a banquet during the G7 summit in Biarritz, France, August 24, 2019.

Queen Elizabeth II welcomes Boris Johnson during an audience in Buckingham Palace, where she will officially recognise him as the new Prime Minister, in London, Britain July 24, 2019. Victoria Jones/Pool via REUTERS TPX IMAGES OF THE DAY

Britain's Prime Minister Boris Johnson visits the Fusion Energy Research Centre at the Fulham Science Centre in Oxfordshire, Britain August 8, 2019. Julian Simmonds/Pool via REUTERS

Britain's Prime Minister Boris Johnson stands next to his partner Carrie Symonds as he hosts a reception to thank hospice staff at 10 Downing Street, in London, Britain August 12, 2019. Picture taken August 12, 2019. 10 Downing Street/Handout via REUTERS

British Prime Minister Boris Johnson serves food to Wenona Pappin, aged 70, during a visit to Torbay Hospital in Torquay, Britain August 23, 2019. Finnbarr Webster/Pool via REUTERS

Britain's Prime Minister Boris Johnson speaks during Prime Minister's Questions session in the House of Commons in London, Britain September 4, 2019. ©UK Parliament/Jessica Taylor/Handout via REUTERS

Britain's Prime Minister Boris Johnson, Farmer Peter Watson and Scottish Secretary Alister Jack are seen during a visit at Darnford Farm in Darnford, Banchory near Aberdeen, Scotland, Britain September 6, 2019. Andrew Milligan/Pool via REUTERS.

Britain's Prime Minister Boris Johnson poses for a photograph with Scotland's First Minister Nicola Sturgeon at Bute House in Edinburgh, Britain, July 29, 2019. Duncan McGlynn/Pool via REUTERS

Britain's Prime Minister Boris Johnson visits to HMS Victorious at HM Naval Base Clyde in Faslane, Scotland, Britain July 29, 2019. Jeff J Mitchell/Pool via REUTERS

German Chancellor Angela Merkel and Britain's Prime Minister Boris Johnson meet at the Chancellery in Berlin, Germany, August 21, 2019.

Britain's new Prime Minister, Boris Johnson, enters Downing Street, in London, Britain July 24, 2019.

Britain's Prime Minister Boris Johnson talks with HMP Leeds governor Steve Robson and Justice Secretary Robert Buckland during a visit to during a visit to HM Prison Leeds, in Leeds, Britain August 13, 2019. Jon Super/Pool via REUTERS

U.S. President Donald Trump, First Lady Melania Trump and Britain's Prime Minister Boris Johnson react after the family photo with invited guests at the G7 summit in Biarritz, France, August 25, 2019.

French President Emmanuel Macron and British Prime Minister Boris Johnson speak during a meeting at the Elysee Palace in Paris, France, August 22, 2019. Christophe Petit Tesson/Pool via REUTERS

Britain's Prime Minister Boris Johnson attends a working lunch during the G7 summit in Biarritz, France, August 26, 2019.

German Chancellor Angela Merkel and Britain's Prime Minister Boris Johnson attend a news conference at the Chancellery in Berlin, Germany August 21, 2019.

Britain's Prime Minister Boris Johnson speaks to the media as he arrives in Biarritz for the G7 summit, France, August 24, 2019.

British Prime Minister Boris Johnson and Canadian Prime Minister Justin Trudeau attend a working lunch during the G7 Summit in Biarritz, France, August 26, 2019. Jeff J Mitchell/Pool via REUTERS

Britain's Prime Minister Boris Johnson is seen aboard the Opportunus IV fishing trawler in Peterhead, Scotland, Britain September 6, 2019. Duncan McGlynn/Pool via REUTERS

Britain's Prime Minister Boris Johnson is seen aboard the Opportunus IV fishing trawler in Peterhead, Scotland, Britain September 6, 2019. Duncan McGlynn/Pool via REUTERS

Prime Minister Boris Johnson holds his first Cabinet meeting at Downing Street in London, Britain, July 25, 2019 Aaron Chown/Pool via REUTERS

Britain's Prime Minister Boris Johnson takes a picture with a woman as he visits Birmingham, Britain July 26, 2019. Geoff Pugh/Pool via REUTERS

Britain's Prime Minister Boris Johnson looks out from an ambulance during a visit to Pilgrim Hospital in Boston, Britain August 5, 2019. Johnson has announced that the NHS will receive a one-off cash boost of £1.8 billion to upgrade facilities and equipment at NHS Trusts in England. Darren Staples/Pool via REUTERS.