London: British Prime Minister Boris Johnson visited northern England on Saturday to thank voters and newly elected Conservative Party lawmakers in the working class heartland that turned its back on the opposition Labour Party in this week's election. Speaking in Sedgefield the constituency once held by Labour former prime minister Tony Blair Johnson acknowledged the seismic shift that helped sweep him to victory in Thursday's election. "I know that people may have been breaking the voting habits of generations to vote for us," he told supporters. "And I want the people of the northeast to know that we in the Conservative Party and I will repay your trust."