If there is no agreement on the divorce plan with the EU, Parliament will be holding a vote on a no-deal Brexit on Wednesday. If this option is also rejected, a vote on extending the Article 50 period beyond 29 March will take place on Thursday.
The Tuesday vote takes place after Prime Minister May and European Commission President Jean-Claude Juncker announced they had agreed that Brussels won't use the so-called "Irish backstop" to pressure London into not leaving the customs union. At the same time, the backstop has to be replaced with a better agreement by the end of 2020.
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