6 hours ago Richard Wheeler Political reporter Reuters Zoë Garbett celebrates winning the Hackney mayoral contest with Green Party leader Zack Polanski Zack Polanski said two-party politics is "dead and buried" as the Green Party celebrated local election gains, including its first-ever elected mayors. The Green Party of England and Wales leader said his belief they could replace Labour was being backed up by results at the ballot box. They took control of Norwich, Hastings and the London borough of Waltham Forest, as well as winning the mayoral contests in Hackney and Lewisham. Polanski said some people were voting for the Greens as they were "disillusioned" with Labour, but he added it was exciting that "lots of people" were supporting the party for the first time. The increased support for the Greens paved the way for the party gaining seats in different parts of England, including Manchester, Sheffield, Leeds, Oxford and Exeter.…