Senate filibuster reform would produce 'nuclear winter', says Mitch McConnell

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Mitch McConnell, who was accused of laying waste to bipartisan co-operation in the Senate when he blocked a supreme court pick by Barack Obama then changed the rules to hurry through three picks for Donald Trump, has said that if Democrats do away with the filibuster, they will turn the Senate into a sort of nuclear winter".

Related: 'Everything is on the table': Senate prepares for showdown over filibuster