On 20 March 2019, the Prime Minister wrote to the President of the European Council, Mr Tusk, to tell him that Brexit should be postponed until 30 June 2019.  On 21 March 2019, May presented her case at a European Council summit in Brussels. After May`s departure, a discussion took place between EU heads of state or government who refused the date of 30 June and proposed to choose two new alternative dates for Brexit. On 22 March 2019, the options for extension were agreed between the UK Government and the European Council.  The first alternative proposed was that if MPs reject May`s deal next week, Brexit would be done with or without a deal by 12 April 2019 – or, alternatively, a further extension and an obligation to participate in the 2019 European elections. The second proposed alternative was that if MPs approved May`s deal, Brexit would take place on 22 May 2019. The next date was the day before the start of the elections to the European Parliament.  After the government deemed concerns about the legality of the proposed amendment (because it included two possible withdrawal dates) unjustified the day before,  on March 27, 2019, the Lords (without a vote)  and the Commons (441 to 105) approved, on 27 March 2019, the legal instrument amending the withdrawal date to 22 May 2019 if a withdrawal agreement is approved. April 12, 2019, if not.  The change was signed at 12:40 p.m. .m the next day.  The treaties no longer apply to the Member State concerned after the withdrawal agreement comes into force or, if not, two years after the Member State has notified the European Council of its intention to leave the territory, although this period may be extended by the unanimous agreement of the European Council.  In April 2017, Theresa May declared an early general election on 8 June in an attempt to “strengthen her hand” in the negotiations;  But the election led to a lagging Parliament, the Conservatives lost their majority.
May remained Prime Minister because she formed a minority government on 26 June with a confidence and supply contract with the Democratic Unionist Party.  The bill was passed on June 26, 2018 as a bag law. Section 1 specifies that the European Communities Act 1972 will be repealed on the day of the withdrawal, which is defined in another section, such as 29 March 2019, at 11 p.m. (subject to any possible changes due to a withdrawal agreement or an agreed extension of the negotiating period).  In section 25, paragraph 1, the provisions of the Act that began on June 26, 2018, in subsections 2 and 3, the provisions of the act that began on that date for specific purposes, and the subsection (4) provide that the other provisions come into force on the day or by decree.  In the absence of a trade agreement, the UK`s trade with the EU would be governed by the World Trade Organization`s Bali package. The result would be that the EU-27 would impose common tariffs and non-tariff barriers to the UK`s access to the European internal market, since the market is also a customs union. However, the Uk would then have the opportunity to control immigration and develop its own trade rules. On 6 September 2020, the Financial Times reported that the UK government was considering drafting new laws to circumvent the protocol of the Northern Ireland Withdrawal Agreement.  The new law would give ministers the power to determine which state aid should be notified to the EU and to define which products at risk of being transferred from Northern Ireland to Ireland (the withdrawal agreement stipulates that in the absence of a reciprocal agreement, all products are considered vulnerable).
 The government defended this approach and stated that the legislation was in accordance with protocol and that it had only “clarified” the volumity in the protocol.  Ursula von der Leyen warned Johnson not to violate international law and said that the implementation of the withdrawal agreement by Britain was a “precondition for any future partnership”.  On 8 September, Brandon Lewis, Foreign Minister for Northern Ireland, told