 Following the 2018 Act, the 2019 bill was introduced to parliament to extend the deadline further.Following the resignation of Theresa May as Leader of the Conservative Party, pro-Remain and moderate pro-Leave MPs were concerned that the frontrunner to replace her, Boris Johnson may consider proroguing parliament in order to force a no-deal Brexit.As this legislation was in the House during this time, Dominic Grieve and others saw it as having potential to act as a vehicle through which they could limit the right of the executive, Queen Elizabeth II, to order prorogation.