In February 2017, Soubry voted to invoke Article 50 of the Treaty on European Union, triggering the process of withdrawal from the EU, saying: "I said I will honour the result of the referendum, so I voted to trigger article 50. So, I accept we are leaving the European Union, even though the result was close. My argument now is how do we get the best deal, and I want parliament, finally, to be involved in getting the best deal for our country." In parliamentary debate over the European Union (Notification of Withdrawal) Bill, Soubry said: "I did not vote with my conscience, and if I am truthful about it, I am not sure that I voted in the best interests of my constituents. ... However, I was true to the promise that I had made to my constituents. I had promised them that if they voted leave, they would get leave, and that is what drove me through the Lobbies last week with a heavy heart and against my conscience."