Sign up for the View from Westminster email for expert analysis straight to your inboxGet our free View from Westminster emailSir Keir Starmer donned his election boots as Labour launched its bid to seize back 10 Downing Street after 14 years in opposition with a 48-hour blitz of battleground seats.In a presidential-style event in Thurrock, Essex, the Labour leader set the tone for the next six months of solid electioneering with a “stability” first message to voters who turned their back on the party after previously supporting Tony Blair.With a confident performance surrounded by his top team, Sir Keir laid out his six “first steps”, aping the five pledges of New Labour in 1997 which swept Blair to power.Among his supporters were two former Tory donors including Boots boss Sebastian James, an Old Etonian friend of Boris Johnson and David Cameron, who endorsed Labour and praised Sir Keir’s focus on economic growth and Britain’s high streets.The second, Rob Boughton, runs one of the biggest developers in the South East; his company has donated nearly £1m to the Conservatives since 2017.But he told the audience that Labour’s message on economic stability and growth had won him over.Labour Party leader Keir Starmer speaks during his visit to the Backstage Centre, Purfleet, for the launch of Labour’s doorstep offer to voters ahead of the general election More