British lawmakers today began debating a crucial Bill that will end the supremacy of European Union (EU) law and replace them with domestic statute on the day Britain leaves the economic bloc. The EU (Withdrawal) Bill will convert all existing EU laws, dating back over 40 years, into UK law in time for Brexit by March 2019. Opening the debate in the House of Commons alongside Prime Minister Theresa May, the UK's minister for exiting the EU – David Davis – said the bill was the next step in the historic process of honouring that decision made in the EU referendum. <br/><br/>He urged all parties to work with the government in the spirit of collaboration, rejecting Opposition claims that he was attempting to change laws without proper Parliamentary scrutiny. However, the passage of the Bill is expected to prove a tumultuous task for May as she faces a cross-party rebellion. MPs are considering the general principles of the bill at its Second Reading which started today, with the first votes expected by Monday.