Sir Roger said the upcoming by-election in Southend in February could prove to be another disaster for Boris Johnson following the humiliating loss he reported in North Shropshire. The Liberal Democrats managed to take advantage of the recent scandals surrounding the Prime Minister and top Tory party MPs due to allegations of their possible rule-breaking behaviour last year. This has caused a major backlash amongst voters in the traditionally Conservative area, with the Lib Dems snatching a nearly 6,000 majority.

       Sir Roger said: "I would not be a bit surprised if people didn't start to write some of those letters.

       "We've got the Southend bi-election coming up, now that's going to be an odd situation because the Liberal party and the Labour party.

       "Because of the circumstances of David Amess's death agreed not to fight it.

       He added: "But it will be fought and it's quite possible I think that, if we're not careful there might be a protest vote there as well.

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       "This is not a happy time for the Prime Minister I'm afraid."

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       Lib Dem winner Helen Morgan criticised Boris Johnson during her speech after she took North Shropshire after nearly 200 years in widely Conservative control.

       Ms Morgan said: "Many of your predecessors took office because they believed in a sense of national service. That they were duty-bound to do what they believed is right for our country.

       "Too often it is all about you and never about us.

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