On December 30, 2020, the United Kingdom's House of Commons voted in favor of the European Union future relationship bill, by 521 votes to 73. The bill made the post-Brexit trade deal law just hours before the transition period was due to end, averting a no-deal Brexit. The deal received such a high level of support in the House of Commons due to being supported by both the Conservative party, and the largest opposition party, the Labour Party.
Parliament rejects May's deal three times
Although the United Kingdom was set to leave the European Union on March 29, 2019, Members of Parliament rejected Theresa May's negotiated deal on January 15 of that year and the amended deal on March 12. Parliament then voted to reject a no-deal Brexit on March 13, and finally to request the EU for a delay on March 14. After receiving an extension until October 31, 2019, Theresa May attempted to get her deal accepted a third time, but this too was rejected, albeit by a smaller margin. As a result of her inability to get her deal through parliament. Boris Johnson emerged as her successor following a Conservative leadership contest.
14 years of Conservative rule come to an end
Johnson won enough seats in the 2019 General Election to ensure the passage of his Withdrawal Agreement on December 20, 2019. The fortunes of Johnson and the Conservative Party quickly turned after this victory, however. A series of scandals cost Johnson his popularity, and by 2022 they were trailing Labour in the polls. Things deteriorated further when Liz Truss replaced Johnson as leader, when her budget caused a brief economic crisis, leading to her resignation after just 45 days in office. Rishi Sunak followed Truss as Prime Minister, but struggled to reverse a dismal polling position for the party in time for the 2024 General Election, which saw them lose to the Labour Party, ending their 14 years as the UK's ruling party.