Rishi Sunak and Sir Keir Starmer kicked off their campaigns on Thursday 23 May, ahead of a snap general election in July.The prime minister announced on Wednesday that Britain will go to the polls in six weeks, as the Conservatives and Labour battle it out for votes.Mr Sunak is urging voters to back him at the polls if they want the government’s flagship Rwanda immigration scheme to succeed, while Sir Keir is calling on Britons to make "change" happen.Here, The Independent takes a look at the latest polling data as the two parties battle it out ahead of the general election on 4 July.