The British people voted to leave the European Union - but the topic of Brexit is more controversial than ever.
Four years ago the UK voted to leave the European Union in the Brexit referendum by a ratio of 52% to 48%.
Even though the UK officially left the EU on 31 January 2020 the debate around Brexit continues.
Both sides are now trying to work out the rules for their new relationship.
The Brexit divorce deal includes everything from trade, immigration, aviation, security and access to fishing waters.
Currently, the UK and the EU have a transition period while talks on the future arrangement take place.
MPs have given their approval to Boris Johnson's controversial Brexit legislation, which would override key elements of his deal with the EU.
The Internal Market Bill passed its first stage and looks set to become enshrined in law.