Carol Vorderman and other left-wing activists have launched a renewed strategy to vote out the Conservative Party through tactical voting. Working with campaign groups The Movement Forward and StopTheTories.vote, over 1,000 people joined an online discussion last night to prepare for the election. The Welsh broadcaster, 63, said she was first aware of the upcoming general election two hours before the official announcement from an associate “who has a mole at Number 10.” “We weren’t allowed to say anything,” she said, adding: “I was like, oh my God … after all the frustrations and all the work…