Prime Minister Theresa May has said Article 50 will only be triggered when there was a UK-wide approach.
Mrs May is in Edinburgh meeting with Scotland's First Minister Nicola Sturgeon.
The Prime Minister's visit - less than 48 hours after taking office - is aimed at showing her commitment to preserving the United Kingdom following the vote to leave the European Union.
Theresa May underlined the importance of keeping Britain united by making her first official visit to Scotland.
The Prime Minister met First Minister Nicola Sturgeon, and said she will listen to options to satisfy Scotland's wish of keeping close ties with Europe.
ITV News' Deputy Political Editor Chris Ship reports:
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.