Rishi Sunak faces the most important vote of his premiership this evening when his ‘Safety of Rwanda’ bill has its second reading in the Commons. The bill seeks to finally get migrant flights off the ground by declaring Rwanda to be ‘safe’. If passed, the legislation will also mean that some international laws will have no effect, making a legal challenge – such as the Supreme Court’s verdict last month that the government’s previous version of the Rwanda scheme was unlawful – less likely.