text:  Hello, I'm David Harper with the BBC News. Keir Starmer is on course to become Britain's next Prime Minister, with his Labour Party projected to have won a landslide victory in parliamentary elections. By contrast, Rishi Sunak and his Conservative Party appear to have suffered one of their worst ever nights, hemorrhaging votes and seats. Exit polls project that Labour will have a majority of about 170 seats in the new Parliament. Just five years ago, the party registered one of its worst sets of results. Here's our political editor, Chris Mason.