Sturgeon quit as Scotland's first minister amid questions over independence push and pandemic response
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Scottish government records showed Sturgeon's Cabinet discussed using Covid crisis to boost independence, despite her stating should not politicise pandemic
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Sturgeon seen as leading strong early response to Covid, but support cooled and she has now quit
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Former UK ministers complained about Sturgeon announcing Scottish measures ahead of UK government during pandemic
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Polls showed support for Scottish independence rose to 55% in summer 2020 amid Sturgeon's pandemic response
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Sturgeon lost some support later in pandemic as UK government credited for vaccine rollout and lockdown easing