Scottish Labour leader tells conference byelection win is proof party can take seats at next general and Holyrood elections

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Labour’s leadership believes Scottish politics has reached a “tipping point” where it can beat the Scottish National party at the next general and Holyrood elections after last week’s dramatic byelection result.

Party strategists said the manner of Labour’s victory over the SNP in Rutherglen and Hamilton West confirmed it now holds about 35% of the vote in Scotland, allowing the party to win back more than two dozen SNP Westminster seats next year.