LONDON (Reuters) – British leadership candidate Liz Truss said on Wednesday she would work with energy companies to bring down prices if she becomes prime minister, as she faces growing pressure to set out more support for households struggling with rising energy bills. Truss, the frontrunner to succeed Boris Johnson, has so far said she favours tax cuts over direct handouts to help households with a cost-of-living squeeze. Her rival, Rishi Sunak, has said this will not help those most in need. “It’s also important that we work with the energy companies to bring the prices down … I’m going t…